13 Support Scripts and Codes - cadfamily.com · Chapter 12: Support Scripts and Codes 581 QINDAT...

Chapter 12: Support Scripts and CodesPatran Thermal User’s Guide Volume 1: Thermal/Hydraulic Analysis

13 Support Scripts and Codes

Purpose 580

QINDAT File Listing 581

Patran Thermal User’s Guide Volume 1: Thermal/Hydraulic AnalysisPurpose

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PurposePatran Thermal is a preference selection in Patran for creating a model to be solved by P/THERMAL, the Patran thermal analysis module. The thermal model can be created and submitted directly from Patran. Analysis results can then be read into the Patran database or postprocessing with the various Patran tools, or for sharing the results with other Patran applications.

When the Patran Thermal preference is set, forms specific to input data required by the P/THERMAL module will appear under Loads/BCs, Element Properties, Materials and Analysis. The User Preference consists of the following:

• Element properties forms for defining properties of the elements in the model such as material.

• Loads/BCs forms for defining Temperature, Convection, Heat Flux, Volumetric Heat, View factors, Pressure (hydraulic) and Mass Flow boundary conditions.

• Analysis form for defining solution type, parameters and job control.

• Materials form for defining material properties or material templates.

If Full Run is set, the Apply selection in the Analysis form will create the appropriate interface files and execute the solver. The interface files created include:

• A neutral file

• The analysis control files qin.dat and vf.ctl

• The script for executing the model patq.inp

• Materials data file Mat.dat

Patran Thermal is designed to support the functionality in P/THERMAL 2.6A, including the View factor code, the new coupled thermal/hydraulic networks and creation of a SINDA input deck. Overall, users will find Patran Thermal a much easier to use product, without sacrificing the powerful capabilities of P/THERMAL.

581Chapter 12: Support Scripts and CodesQINDAT File Listing

QINDAT File ListingAll file names in this listing are generic and may differ slightly for the computer you are using.

* This is a QTRAN input data file (QIN.DAT). Note that any* line beginning with an asterisk (*) is a comment. Also note that a* semicolon (;) denotes the end of a line so that comments may be placed* to the right of any semicolon. All comments are, of course, optional.* ########################################################################### # Q T R A N - Q T R A N -- Q T R A N -- Q T R A N -- Q T R A N # # Version: 13.1.082 (haddock.v13) # # Release Date: Thu Feb 17 11:14:02 PST 2005 # # Execution Node: blade(0x80fb2476, -2131024778) (SunOS 5.8) # # Execution Date: 17-FEB-2005 # # Execution Time: 13:45:09 # ###########################################################################

################################################### ### COPYRIGHT 1986-2004 BY ### ### MSC Software CORP. ### ### ALL RIGHTS RESERVED. ### ###################################################******************************************************************** File written from P3** P3 Version: 2005 r2** Database: /users2/haddock/test/v13/pvf_plate/pvfplate01.db** Job Name: pvfplate01a** Job Description** pvfplate01a - heated plate radiating to one 0.6 meters away. ** File Creation Date: 17-Feb-05* File Creation Time: 13:44:48** ******************************************************************** If you wish to restart QTRAN from an existing nodal results file,* you may do so with a $RESTART command. The following $RESTART command* (which is commented out) requests QTRAN to be restarted from nodal* results file NR10.NRF, and to begin new nodal results file names* with "nnn" = 43, where the nodal results files are named NRnnn.NRF.* If a third field is not supplied, then the time from the nodal results* file NR10.NRF will be used as the initial time for the new run. If a* third field is supplied, it will be used as a new initial time for the* new execution. If the newtempflag is not zero then temperatures in the* defined initial temperature block will be used.* Since this $RESTART command is commented out, it will have no effect and* is used here simply as a place keeper for your convenience.***TRASYS_TR $RESTART nr000.nrf 43 newTime newtempflag**TRASYS_DY $RESTART nr000.nrf 43 newTime newtempflag******************************************************************************** Section 5.2.1: Output Labels*Sample master input file. Edit to fit your run requirements$INSERT title.dat * Insert the TITLE.DAT file. This* file will contain the neutral* file title data.

Patran Thermal User’s Guide Volume 1: Thermal/Hydraulic AnalysisQINDAT File Listing

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** Example title data before the $INSERT title.dat command which includes* the title data from a translated PATRAN neutral file.** NOTE: $INSERT records are used throughout the QIN.DAT file to load* blocks of specific types of information at the appropriate* position. If the data or file is not available, the insert* record will have no effect. But, it will serve as a place* holder for future runs.**----------------------------------------------------------------------------*$ ; Terminate title data with a "$".******************************************************************************** Section 5.2.2: Input Data File Echo Option*IECHO Y ; Data Echo? (Y=yes,N=no)* * ***************************************************************************** Section 5.2.3: Temperature Scale Definition*$ECHO_ON*ISCALE K ; Output temperatures in Kelvin.ICCALC K ; Calculate using Kelvin.* Temperature options are R, F, K,* and C.TLABEL SECONDS ; Time units label is "SECONDS".* This is label only, no time units* conversion takes place.** ***************************************************************************** Section 5.2.4: Transient/Steady State Run Option Selection** Options for the hydraulic solution** HIOPT HSOL NTBHUP* ----- ---- ------HIOPT 0 2 200000 ; HIOPT = 0 = No hydraulic network* 1 = Hydraulic network only* 2 = Hydraulic network coupled* to thermal network* HSOL = 2 = Direct solver* NTBHUP = Number of thermal iterations* between hydraulic solutions* for steady state or the* number of time steps before* hydraulic update for* transient calculations.** Options for the thermal solution** IOPT SOL NITBUP MFLIPF* ---- --- ------ ------IOPT 1 0 4 8 ; IOPT = 3 = Steady State* Other IOPT options are:* 0 = data check only* 1 = transient* 2 = SS + Transient* 3 = Steady State (SS)* 4 = Transient + SS* 5 = SS + Transient + SS* SOL = 0 = STANDARD SOLUTION* = 1 = WEAKLY NONLINEAR


* SOLUTION.* = 2 = Direct solution* NITBUP = Number of ITerations* Between conductive* resistor UPdates if* SOL = 1. If SOL = 0,* NITBUP is how frequently* all nodes are updated. If* SOL=2, its the number of* iterative solutions* performed before before* another direct calculation* MFLIPF = Number of flip flops in* the convergence value* before a full bisection* solution is used.** ***************************************************************************** Section 5.2.5: Iteration Limit Parameters*IMAX 36 ; Maximum Iterations per time step.IMIN 9 ; Minimum Iterations per time step.* IMAX should always be greater than IMIN by* a factor of more than 2. If it is* desireable to follow a transient very* close, use value of IMAX = 30, IMIN = 8. * If one doesn't care how close the * transient is followed, then values such as * IMAX = 250, IMIN = 20 could be used.*IMAXSS 2000 2000 ; Maximum number of Steady State Iterations* for the thermal and hydraulic solutions* respectively.ISSDMP 2000 ; Number of Steady State Iterations per * output dump.* ***************************************************************************** Section 5.2.6: Control Parameters*DT 1.000000E-4 1.000000E-30 ; Initial and minimum* allowed time step.*TSTART 0.0000000000D-01 ; Start time.TSTOP 40.0000000000D+00 ; Stop time.*TSFMIN 6.5000000000D-01 ; Shrinking time step factor.TSFMAX 2.0000000000D+00 ; Expanding time step factor.*HYEPIS 1.0000000000D-04 ; Hydraulic convergence criteria*EPSISS 1.0000000000D-03 ; Steady State Convergence Criteria* (in degrees ICCALC).** EPSIT EPSIT2* ---------------- ------EPSIT 1.0000000000D-04 1.0D-07 ; EPSIT is the convergence criteria* (in degrees ICCALC). EPSIT2 is* the iterative delta cutout* criteria in degrees ICCALC. For* transient runs, any node whose* iterative delta is less than EPSIT2* will be removed from the iterative* process, thus conserving CPU time.* EPSIT2 should be several orders of* magnitude less than EPSIT. If* EPSIT2 is entered as blank or 0.0,* all nodes are iterated until the


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* worst node has converged (this is* a conservative approach).*PERTUR 5.0000000000D-02 ; PERTUR is the perturbation* parameter (degrees ICCALC) for the* Newton's 2nd Order Scheme of the* SNPSOR algorithm. ** RELAXS IFSRLX* ------ ------RELAXS 1.0000000000D+00 1 ; Steady State Relaxation Parameters* and control flag. RELAXS is the* initial relaxation value or a* constant if input as a negative* value. IFSRLX indicates the type* of relaxation values that are to* be calculated.* IFSRLX = 0 (default) System relaxation value which* applies to all nodes is calculated.* IFSRLX = 1 Group relaxation values are calculated.* Seperate relaxation parameters are * determined dependent on the type of * boundary condition (Advection,* radiation, convection or conduction) * at the node.* IFSRLX = 2 Individual relaxation parameters are* determined on a node by node basis.** Steady state relaxation controls** MAXIMUM DAMPER MULTIPLIER* ------- ------ ----------RLXSAT 1.999 0.30 1.00 ; Advection relaxation controlsRLXSRT 1.999 0.80 1.00 ; Radiation relaxation controlsRLXSHT 1.999 0.94 1.00 ; Convection relaxation controlsRLXSCT 1.999 0.95 1.00 ; Conduction relaxation controlsRLXSST 1.999 0.95 1.00 ; System relaxation controls** The relaxation controls apply to specific nodes that have the specific* type of boundary conditions defined. If any node has advection, then* those nodes use the advection controls. If nodes have more than* one type of boundary condition, then the controls with the following* order will apply: advection, radiation, convection and conduction.* System controls apply when only one relaxation parameter is calculated* for the entire system of nodes being analyzed.** MAXIMUM is the upper limit to the relaxation parameter.* Valid values are between 1.0 and 1.999* DAMPER is the factor applied to the increase in the relaxation* parameter. This serves to retard the rate of increase* in the relaxation parameter.* Valid values are between 0.001 and 1.0* MULTIPLIER is a multiplier that is applied to the application of* the relaxation parameter. This is a means of applying* under relaxation to node groups.* Valid values are between 0.001 and 1.0*** RELAXT IFTRLX* ------ ------RELAXT 1.0000000000D+00 1 ; Transient Relaxation Parameters* and control flag. RELAXT is the* initial relaxation value or a* constant if input as a negative* value. IFTRLX indicates the type* of relaxation values that are to* be calculated.* IFTRLX = 0 (default) System relaxation value which


* applies to all nodes is calculated.* IFTRLX = 1 Group relaxation values are calculated.* Seperate relaxation parameters are * determined dependent on the type of * boundary condition (Advection,* radiation, convection or conduction) * at the node.* IFTRLX = 2 Individual relaxation parameters are* determined on a node by node basis.** Transient relaxation controls** MAXIMUM DAMPER MULTIPLIER* ------- ------ ----------RLXTAT 1.999 0.95 1.00 ; Advection relaxation controlsRLXTRT 1.999 0.95 1.00 ; Radiation relaxation controlsRLXTHT 1.999 0.95 1.00 ; Convection relaxation controlsRLXTCT 1.999 0.95 1.00 ; Conduction relaxation controlsRLXTST 1.999 0.95 1.00 ; System relaxation controls*** BETA BETMIN BETMAX* ----- ------ ------BETA 1.0000000000D+00 0.0000D+00 1.0000D+00** BETA is the Explicit/Implicit Ratio * 0.0 = fixed fully explicit;* -1.0 = fixed fully implicit;* > 0.0 = adaptive explicit/implicit.* BETMIN is the minimum BETA value (Default = 0.0)* BETMAX is the maximum BETA value (Default = 1.0)** DELMAX MINTMP MAXTMP* ------ ------ ------DELMAX 1000.0 -1.000D+30 1.000D+30** DELMAX is the Maximum allowed iterative delta.* (DEFAULT = 1000.0)* MINTMP is the Minimum allowable calculated temperature.* (Default = -1.000D+30)* MAXTMP is the Maximum allowable calculated temperature.* (Default = 1.000D+30)** PCBAND CPDELT* ---------------- ------PCBAND 1.0000000000D-00 1000.0 ; PCBAND is the Phase Change Band* width in degrees ICCALC for* problems using QTRAN's standard* phase change algorithm. CPDELT * (if blank or non-zero) is the* temperature integration step over * which the Cp curve will be * evaluated to obtain an integrated * average Cp value for a time step. * If any Cp curves have "spikes", * CPDELT should be set to some * temperature value significantly * smaller (1/5 to 1/10 of the spike* width).** GRAVTY GX GY GZ* ------ -- -- --GRAVTY 0.0, 0.0, 0.0, 0.0** ; Gravitational constant, GX, GY, GZ Gravity * ; field in x, y, and z direction for * ; determination of gravity heads.*


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SBC 0.0 ; Stephan-Boltzmann Constant* (if 0.0 is entered, SBC will* default according to the ICCALC* temperature scale to either SI* units or to English units).**>>>>>>>> RADIATION <<<<<<<<<<<<<<<<<<<<<<<<<<<** ___ STEFAN-BOLTZMANN CONSTANT ___** SBC 1.7140E-9 ; BTU/HR/FT2/R4* SBC 1.712E-9 ; BTU/HR/FT2/R4 (EXPERIMENTAL)* default for English units* SBC 2.8567E-11 ; BTU/MIN/FT2/R4* SBC 4.7611E-13 ; BTU/SEC/FT2/R4* SBC 1.7993E-8 ; BTU/HR/FT2/K4* SBC 2.9988E-10 ; BTU/MIN/FT2/K4* SBC 4.9980E-12 ; BTU/SEC/FT2/K4* SBC 1.1903E-11 ; BTU/HR/IN2/R4* SBC 3.3063E-15 ; BTU/SEC/IN2/R4* SBC 5.01783E-10 ; WATTS/FT2/R4* SBC 3.4846E-12 ; WATTS/IN2/R4* SBC 5.26753E-9 ; WATTS/FT2/K4* SBC 5.40113E-13 ; WATTS/CM2/R4* SBC 3.6580E-11 ; WATTS/IN2/K4* SBC 5.6699E-12 ; WATTS/CM2/K4* SBC 5.6699E-5 ; ERGS/SEC/CM2/K4* SBC 5.6696E-8 ; WATTS/M2/K4 (EXPERIMENTAL)* default for SI units* SBC 5.6696D-14 ; WATT/mm2/K4** ****************************************************************************DCMF 1 ; DisContinuous Macrofunction Flag* 0 --> off* 1 --> on (discontinuous * macrofunctions may exist).** ***************************************************************************** Section 5.2.7: Resistor/Capacitor/Qmacro Data Print Option** C H R W A Cap Q HA HC* - - - - - --- - -- --IRQFLO 0 0 0 0 0 0 0 0 0**------------------------------------------------------------------------------** Nodal results file format*NRFORM 0 ; = -> 0 Binary file* ; = -> 1 ASCII file**------------------------------------------------------------------------------** Which records are to be put in the nodal results file** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18* - - - - - - - - - -- -- -- -- -- -- -- -- --*IDMNRF 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0** ; = -> 0 Record is not put in nodal results file* ; = -> 1 Record is put in nodal results file** Entry Number 1 = Temperatures* Entry Number 2 = Net nodal heat flow* Entry Number 3 = Explicit stable time step


* Entry Number 4 = QMACRO function heat input* Entry Number 5 = QBASE heat input to each node* Entry Number 6 = Total heat input to each node* Entry Number 7 = Temperature error* Entry Number 8 = Average convection heat transfer coefficient** Entry Number 9 = Pressure at a given node from the hydraulic solution* Entry Number 10 = Mass flow rate at a given node from the * hydraulic solution** Entry Number 11 = Mass flow rate in hydraulic element* Entry Number 12 = Differential head in hydraulic element* Entry Number 13 = Fluid velocity in hydraulic element* Entry Number 14 = Volume flow rate in hydraulic element** Entry Number 15 = Applied heat flux* Entry Number 16 = Convective heat flux* Entry Number 17 = Radiate heat flux* Entry Number 18 = Total heat flux** ***************************************************************************** Section 5.2.8 Data: Maximum Time Step Controls** Section 5.2.8.1: Initial Maximum Time Step** DTMAX DTMAXH* ----- ------DTMAX 10.0 100.0 ; Initial maximum Thermal and Hydraulic* time steps.** ---------------------------------------------------------------------------** Section 5.2.8.2: Maximum Allowable Time Step Adjustments** New DT Time New HDT* ------ ---- -------*DTMAXA 1.0 14.0 0.8 ; Sets the maximum time step size* to 1.0 at time = 14.0 and the* hydraulic time step becomes 0.8.* The line has been commented* out.** ---------------------------------------------------------------------------*$ ; End DTMAXA input with a "$".** ***************************************************************************** Section 5.2.9 Data: Node Definitions*$INSERT pnode.dat* Pressure nodes that will be used in the* hydraulic flow network calculations.* Hydraulic nodes must be the first nodes * specified.*$INSERT node.dat * Insert the NODE.DAT file. This* file will contain the node numbers* generated by PATRAN and PATQ.*$INSERT vfnode.dat * Insert the VFNODE.DAT file. This* file contains the node numbers* generated by P/VIEWFACTOR.**----------------------------------------------------------------------------


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*$ ; Terminate the DEFNOD data with a "$".**----------------------------------------------------------------------------*$INSERT tcoupl.dat* Insert the TCOUPL.DAT file. This* file contains the node IDs which are* to be included in the analysis as if* they were part of the companion node.* Node location and identity are preserved.**------------------------------------------------------------------------------*$ ; Terminate with a "$"**----------------------------------------------------------------------------*$INSERT nodxyz.dat* Insert the NODXYZ.DAT file. This* file contains the node locations and* the values are stored according to* their definition of the nodes in the* previous section.**------------------------------------------------------------------------------*$ ; Terminate with a "$"*** ***************************************************************************** Section 5.2.10 Data: Print Controls** Section 5.2.10.1: Initial Output Print Interval*TPRINT 1.0 ; Initial Transient Print Interval.** ---------------------------------------------------------------------------** Section 5.2.10.2: Output Print Interval Adjustments** New TPRINT Time* ---------- ----*PRINTA 0.2 1.1 ; Sets the print interval size* This statement forces an output* at 1.1 eventhough the print * increment is 1.0. The print* interval is changed to 0.2 and* resulting print times would be* 1.1, 1.3, 1.5, 1.7, etc.*PRINTA -0.5 2.3 ; Sets the print interval size* The negative sign on this * statement would force* print at 2.3 and on multiples* of 0.5 there after. For example* 2.3, 2.5, 3.0, etc.*PRINTA 1.0 5.0 ; Sets the print interval size*PRINTA 10.0 10.0 ; Sets the print interval size*PRINTA 50.0 50.0 ; Sets the print interval size* At time 50 the print interval * will be changed to 50.** *$ ; Terminate PRINTA data with a "$".** ---------------------------------------------------------------------------


** Section 5.2.10.3: Nodal Print Block Definitions** NOTE: If no PBLOCK data is specified, the default is* to print out all nodal data. With "PBLOCK 1 1 1" specified as below,* printout of all but node 1 into the QOUT.DAT will be suppressed.* All node data will still be printed out into the nodal results files* generated by QTRAN. **PBLOCK 1 1 1** ---------------------------------------------------------------------------** Section 5.2.10.4: Nodal Plot Block Definitions** NOTE: If no IPLTBK data is specified, the plot file is not opened.* With "IPLTBK 1 3 1" specified only those nodes between 1 and 3* will be output to the plot file after each converged calculation.* Also, only temperature in ICCALC units are output to the file.**IPLTBK 1 3 1*$ ; The print and plot block is terminated with a "$".**############################################################################** Section 5.3: MATERIAL PROPERTY SECTION*$INSERT mat.dat * Insert the material properties* data file MAT.DAT.*$ ; End the material property data Section 5.3 with a "$".**############################################################################** Section 5.4.0: RESISTOR AND CAPACITOR DATA SET DEFINITIONS** Section 5.4.1: Resistor Data Sets**----------------------------------------------------------------------------** This portion of the QIN.DAT file has a number of optional "$STATUS message" * commands. These can be of some help in the event that QTRAN encounters an* error and for some reason you have difficulty in ascertaining where the* error occurred.**----------------------------------------------------------------------------*$STATUS Beginning to read conduc.dat*$INSERT conduc.dat,C ; the ",C" implies a binary file.*$STATUS conduc.dat input finished.**----------------------------------------------------------------------------*$STATUS Beginning to read fres.dat*$INSERT fres.dat ; hydraulic data*$STATUS fres.dat input finished.**----------------------------------------------------------------------------*$STATUS Beginning to read convec.dat*$INSERT convec.dat


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$INSERT gap_convec.dat ; Gap convection between regions$INSERT ../convec.dat.apnd ; Supplemental resistors defined by the user*$STATUS convec.dat input finished.**----------------------------------------------------------------------------** These commands are used to $INSERT the radiation resistor data generated* by P/VIEWFACTOR.*$STATUS Beginning to read vfres.dat.*$INSERT vfres.dat,RAD ; the ",RAD" inplies a binary file.*$STATUS vfres.dat input finished.***TRASYS_SS $INSERT travrc.dat ; Uncomment the trasys file based on the**TRASYS_TR $INSERT travrc.dat ; type of analysis performed.**TRASYS_DY $INSERT trdynrdk.dat ; SS Steady State, TR Transient**TRASYS_DY $INSERT trcdrc.dat ; DY are for dynamic view factors*$INSERT trarst.dat ; Radiation resistors defined by TRASYS$INSERT nevrst.dat ; Radiation resistors defined by NEVADA$INSERT ambn_rad.dat ; Radiation to an ambient node.$INSERT gap_rad.dat ; Gap radiation between two nodes.$INSERT rad_dir.dat ; Direct translation radiation network.**----------------------------------------------------------------------------*$STATUS Beginning to read res.dat.*$INSERT res.dat*$STATUS res.dat input finished.**----------------------------------------------------------------------------*$ ; Terminate the resistor input with a "$".*$STATUS All resistor data input is complete.** ***************************************************************************** Section 5.4.2: Capacitor Data Sets*$STATUS Beginning to read cap.dat.*$INSERT cap.dat,CAP ; the ",CAP" implies a binary file.$INSERT ../cap.dat.apnd ; Supplemental capacitors defined by the user*$STATUS cap.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the capacitor data input with a "$".*$STATUS All thermal network data has now been successfully input.**############################################################################** Section 5.5.1: Microfunction Definitions*$STATUS Read in the micro.dat file.*$INSERT micro.dat$INSERT micro_st.dat***TRASYS_DY $INSERT tramic.dat ; Uncomment the appropriate file depending


**TRASYS_TR $INSERT tramic.dat ; if it were a transient or dynamic TRASYS $INSERT nevmic.dat ; Time dependent heating defined by NEVADA*$STATUS micro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the microfunction data input with a "$".*$STATUS All microfunction data has now been successfully input.** ***************************************************************************** Section 5.5.2: Heat Source/Sink Macrofunction Definitions*$STATUS Read in the qmacro.dat file.*$INSERT qmacro.dat$INSERT qmacro_dir.dat***TRASYS_DY $INSERT traqma.dat ; Uncomment heat flux file depending if**TRASYS_TR $INSERT traqma.dat ; TRASYS run was transient or dynamic*$INSERT nevqma.dat ; Variable heat load defined by NEVADA*$STATUS qmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the QMACROfunction data with a "$".*$STATUS All QMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.3 Data: Temperature Control Macrofunctions*$STATUS Read in the tmacro.dat file.*$INSERT tmacro.dat$INSERT tmacro_dir.dat*$STATUS tmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the TMACROfunction data with a "$".*$STATUS All TMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.4 Data: Mass Flow Hydraulic Control Macrofunctions*$STATUS Read in the mmacro.dat file.*$INSERT mmacro.dat$INSERT mmacro_dir.dat*$STATUS mmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the MMACROfunction data with a "$".*$STATUS All MMACROfunction data has now been successfully input.** ***************************************************************************


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** Section 5.5.5 Data: Pressure Hydraulic Control Macrofunctions*$STATUS Read in the pmacro.dat file.*$INSERT pmacro.dat$INSERT pmacro_dir.dat*$STATUS pmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the PMACROfunction data with a "$".*$STATUS All MMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.6 Data: Initially Fixed Nodes*$STATUS Read in the tfix.dat file.*$INSERT tfix.dat *$STATUS tfix.dat input complete.**----------------------------------------------------------------------------** Section 5.5.6 Data: Initially Fixed Pressure Nodes*$STATUS Read in the pfix.dat file.*$INSERT pfix.dat *$STATUS pfix.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the fixed node data with a "$".*$STATUS Fixed node data has now been successfully input.** ***************************************************************************** Section 5.5.7 Data: Nodal Classification Changes** [ None used for this problem. ]*$ ; Terminate CLASSification changes with a "$".** ***************************************************************************** Section 5.5.8 Data: Initial Global Temperature and Heat Source*TINITL 20.0 C ; Globally assign an initial * temperature of 20.0 C *PINITL 101325.0 ; Globally assign an initial * pressure of 101325 nt/m2*MGLOBL 0.0 ; Globally assign an initial * mass flow rate 0.0 kg/sec** MPIDGH MPIDGX MPIDGY MPIDGZ* ------ ------ ------ ------MPIDGH 0 0 0 0** ; Material property IDs which define


* ; variable gravity fields.* ; MPIDGH - Field value used for units* ; conversions m/sec2* ; MPIDGX - Gravity along x-axis* ; MPIDGY - Gravity along y-axis* ; MPIDGZ - Gravity along z-axis*QGLOBL 0.00000000000D+00 ; Globally assign a per-unit-volume* heat flux of 0.0.** ***************************************************************************** Section 5.5.9: Individual Assignments of Initial Temperatures**$STATUS Read in the temp.dat file.*$INSERT temp.dat*$STATUS temp.dat data input complete.**----------------------------------------------------------------------------** Section 5.5.9: Individual Assignments of Initial Pressures*$STATUS Read in the press.dat file.*$INSERT press.dat*$STATUS press.dat data input complete.**----------------------------------------------------------------------------*$ ; Terminate the initial temperature and pressure data with a "$".*$STATUS Initial temperature and pressure data input complete.** ***************************************************************************** Section 5.5.10: Individual Assignments of Constant Heat Sources*$STATUS Beginning to read qbase.dat.*$INSERT qbase.dat $INSERT qbase_dir.dat**TRASYS_SS $INSERT trqbas.dat ; uncomment if this is a steady state* TRASYS run.$INSERT nevbas.dat ; Constant heat load defined by NEVADA*$STATUS qbase.dat data input complete.**----------------------------------------------------------------------------** Section 5.5.10: Individual Assignments of Constant mass flow rate*$STATUS Beginning to read mdbase.dat*$INSERT mdbase.dat*$STATUS mdbase.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the constant heat source and mass flow rate data with a "$".** ***************************************************************************** END OF QIN DATA FILE


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** ***************************************************************************** User input may follow** ***************************************************************************


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; End the material property data Section 5.3 with a "$".**############################################################################** Section 5.4.0: RESISTOR AND CAPACITOR DATA SET DEFINITIONS** Section 5.4.1: Resistor Data Sets**----------------------------------------------------------------------------


** This portion of the QIN.DAT file has a number of optional "$STATUS message" * commands. These can be of some help in the event that QTRAN encounters an* error and for some reason you have difficulty in ascertaining where the* error occurred.**----------------------------------------------------------------------------*$STATUS Beginning to read conduc.dat*$INSERT conduc.dat,C ; the ",C" implies a binary file.*$STATUS conduc.dat input finished.**----------------------------------------------------------------------------*$STATUS Beginning to read fres.dat*$INSERT fres.dat ; hydraulic data*$STATUS fres.dat input finished.**----------------------------------------------------------------------------*$STATUS Beginning to read convec.dat*$INSERT convec.dat $INSERT gap_convec.dat ; Gap convection between regions$INSERT ../convec.dat.apnd ; Supplemental resistors defined by the user*$STATUS convec.dat input finished.**----------------------------------------------------------------------------** These commands are used to $INSERT the radiation resistor data generated* by P/VIEWFACTOR.*$STATUS Beginning to read vfres.dat.*$INSERT vfres.dat,RAD ; the ",RAD" inplies a binary file.$INSERT trarst.dat ; Radiation resistors defined by TRASYS$INSERT nevrst.dat ; Radiation resistors defined by NEVADA$INSERT gap_rad.dat ; Gap radiation between two nodes.*$STATUS vfres.dat input finished.**----------------------------------------------------------------------------*STATUS Beginning to read res.dat.*$INSERT res.dat*$STATUS res.dat input finished.**----------------------------------------------------------------------------*$ ; Terminate the resistor input with a "$".*$STATUS All resistor data input is complete.** ***************************************************************************** Section 5.4.2: Capacitor Data Sets*$STATUS Beginning to read cap.dat.*$INSERT cap.dat,CAP ; the ",CAP" implies a binary file.$INSERT ../cap.dat.apnd ; Supplemental capacitors defined by the user


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*$STATUS cap.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the capacitor data input with a "$".*$STATUS All thermal network data has now been successfully input.**############################################################################** Section 5.5.1: Microfunction Definitions*$STATUS Read in the micro.dat file.*$INSERT micro.dat$INSERT tramic.dat ; Time dependent heating defined by TRASYS$INSERT nevmic.dat ; Time dependent heating defined by NEVADA*$STATUS micro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the microfunction data input with a "$".*$STATUS All microfunction data has now been successfully input.** ***************************************************************************** Section 5.5.2: Heat Source/Sink Macrofunction Definitions*$STATUS Read in the qmacro.dat file.*$INSERT qmacro.dat$INSERT traqma.dat ; Variable heat load defined by TRASYS$INSERT nevqma.dat ; Variable heat load defined by NEVADA*$STATUS qmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the QMACROfunction data with a "$".*$STATUS All QMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.3 Data: Temperature Control Macrofunctions*$STATUS Read in the tmacro.dat file.*$INSERT tmacro.dat*$STATUS tmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the TMACROfunction data with a "$".*$STATUS All TMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.4 Data: Mass Flow Hydraulic Control Macrofunctions*$STATUS Read in the mmacro.dat file.*$INSERT mmacro.dat


*$STATUS mmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the MMACROfunction data with a "$".*$STATUS All MMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.5 Data: Pressure Hydraulic Control Macrofunctions*$STATUS Read in the pmacro.dat file.*$INSERT pmacro.dat*$STATUS pmacro.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the PMACROfunction data with a "$".*$STATUS All MMACROfunction data has now been successfully input.** ***************************************************************************** Section 5.5.6 Data: Initially Fixed Nodes*$STATUS Read in the tfix.dat file.

*$INSERT tfix.dat *$STATUS tfix.dat input complete.**----------------------------------------------------------------------------** Section 5.5.6 Data: Initially Fixed Pressure Nodes*$STATUS Read in the pfix.dat file.*$INSERT pfix.dat *$STATUS pfix.dat input complete.**----------------------------------------------------------------------------*$ ; Terminate the fixed node data with a "$".*$STATUS Fixed node data has now been successfully input.** ***************************************************************************** Section 5.5.7 Data: Nodal Classification Changes** [ None used for this problem. ]*$ ; Terminate CLASSification changes with a "$".** ***************************************************************************** Section 5.5.8 Data: Initial Global Temperature and Heat Source*TINITL 20.0 C ; Globally assign an initial * temperature of 20.0 C *PINITL 101325.0 ; Globally assign an initial


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* pressure of 101325 nt/m2*MGLOBL 0.0 ; Globally assign an initial * mass flow rate 0.0 kg/sec** MPIDGH MPIDGX MPIDGY MPIDGZ* ------ ------ ------ ------MPIDGH 0 0 0 0** ; Material property IDs which define* ; variable gravity fields.* ; MPIDGH - Field value used for units* ; conversions m/sec2* ; MPIDGX - Gravity along x-axis* ; MPIDGY - Gravity along y-axis* ; MPIDGZ - Gravity along z-axis*QGLOBL 0.00000000000D+00 ; Globally assign a per-unit-volume* heat flux of 0.0.** ************************************Section 5.5.9: Individual Assignments of Initial Temperatures**$STATUS Read in the temp.dat file.*$INSERT temp.dat*$STATUS temp.dat data input complete.**----------------------------------------------------------------------------** Section 5.5.9: Individual Assignments of Initial Pressures*$STATUS Read in the press.dat file.*$INSERT press.dat*$STATUS press.dat data input complete.**----------------------------------------------------------------------------*$ ; Terminate the initial temperature and pressure data with a "$".*$STATUS Initial temperature and pressure data input complete.** ***************************************************************************** Section 5.5.10: Individual Assignments of Constant Heat Sources*$STATUS Beginning to read qbase.dat.*$INSERT qbase.dat $INSERT trqbas.dat ; Constant heat load defined by TRASYS$INSERT nevbas.dat ; Constant heat load defined by NEVADA*$STATUS qbase.dat data input complete.**----------------------------------------------------------------------------** Section 5.5.10: Individual Assignments of Constant mass flow rate*$STATUS Beginning to read mdbase.dat*$INSERT mdbase.dat*$STATUS mdbase.dat input complete.*


*----------------------------------------------------------------------------*$ ; Terminate the constant heat source and mass flow rate data with a "$".** ***************************************************************************** END OF QIN DATA FILE** ***************************************************************************

Patran Thermal User’s Guide Volume 1: Thermal/Hydraulic AnalysisQSTAT - QTRAN STATUS

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QSTAT - QTRAN STATUSQSTAT is a stand alone program that can be executed while QTRAN is being executed or after execution is completed and will yield convergence information associated with the job. Communication between QSTAT and QTRAN is through a statbin file. To prevent both codes from having the file open at the same time they each will drop “hidden” files while it is processing the file. The other code can not access the file until the “hidden” file is deleted.

By typing qstat in the command line while you are in the directory where the job is being executed, a convergence history will be output. For the steady state case all iterations will be output to the current point in the calculation. If a transient analysis is being analyzed the iteration status for the current time step will be displayed. There are a number of command line option that can be used with qstat.

qstat b

The number of iteration can become large and if you are monitoring a job and would like to see the being and ending iterations the B option will limit the output and still the information output and limit it to about 25 lines. The information in the file includes the iteration number, the node ID of the node that had the

largest iterative delta temperature, the maximum iterative delta times its relaxation value, the node temperature and the new relaxation value for the node in question. The iterative delta time the relaxation value is the temperature change that will be applied to the node for the next iteration cycle. The QTRAN cpu time stamp is also included

605Chapter 12: Support Scripts and CodesQSTAT - QTRAN STATUS

qstat t

Rather than seeing some of the iterations at the being and end of the STATBIN file, the “t” option supplies a limited output for the latest iterations.

qstat c 15

If you wish to closely monitor a job, the qstat c option will provide the same output as the “t” option but will give a status report approximately every 1.5 minutes. It will repeat the process 10 times or until the job has finished. If you wish to get more than 10 outputs a second parameter can be specified that defines how many outputs are desired.

qstat s

For transient run you get the same report with the qstat or qstat with the “s” option; however, it only applies to the latest time step as shown below. The status file number is an indication as to how many time steps have been executed to this point. The time listed is the old time. The time variable is not advanced until a converged solution has been obtained thus the actual time represented in the following example is 10 seconds.


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qstat l

At times it many be desirable to see more than one time point to observe the progression of the time step. The “l” option provides this capability. The STATBIN file will not be reset after each converged solution but will continue to put the convergence status in the file until it is turned off with a qstat s command at which time the STATBIN will revert to the default of a single time step per file. An example of multiple output is shown below.


qstat g

On long running jobs it could be desirable to do more than monitor the progression of the execution. The “g”, “p” and “r” option give the user the ability to interface with the job during execution and allows them to change several of the solution controls. The “g” option will interrupt a job and print a file with these alterable parameters to a file at that time. The execution will continue as soon as it has finished writing the old parameter file. The qstat g command can be issued prior to executing QTRAN if for example it was desired to get the parameters from a restart job.

qstat p

The qstat p allows one to edit an old parameters file or create a new one from default values. Execution of this command enables the user to get a help file with a summary of what can be accomplished with the dynamic series of qstat option.


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The parameters that can be altered with the “p” option are listed below. While manipulation the parameters with this option the QTRAN problem will continue to run.


qstat r

The command qstat r is a combination of qstat g followed by qstat p. However, in this case the the QTRAN run will be interrupted for as much as 15 minutes wall clock time while you make the changes. After that time the QTRAN run will resume and you can continue modifying the parameters file and submit it later as the same as if you had issued the qstat p command.


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