HIMAG - hypercomp.net

HIMAG HyPerComp Incompressible MHD solver for Arbitrary Geometry

Appendix I: Quick Reference Guide

HIMAG 2019 HyPerComp, Inc.

2629 Townsgate Rd, Suite

105

Westlake Village, CA 91361

http://www.hypercomp.net

(T) 805-371-7500

Release 1.0

July 2019

http://www.hypercomp.net/

HIMAG – Quick Reference Guide

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QUICK REFERENCE GUIDE

Input file : *.input

If a variable isn't defined in the input data file, it uses the default value.

The code is dimensional, the unit system is SI

Length (m) Velocity (m/s)

Density (kg/m^3) Dynamic Viscosity (kg/m-s)

Pressure (Pa=kg/m-s^2) Current density (A/m^2)

Temperature (k) Therm cond (W/m-k)

B-field strength (Tesla=kg/A-s^2) Elect cond (mho/m=S/m)

Variables

A - aamn

- aamx

- ad12

- ak12

- alpha

- alphu

B - bangl

- bbmn

- bbmx

- bval

- bx0

C - c_rest

- cfl

- cpl

- cpw1

- cpw2

- cpwN

D - delbx

- deltT

- dful

- dpdx

- dratio

- dtfac

- dtime

E - ecratio

- epsln

- epsmin

F

G - gras

- grid_scale

- gx

- gy

- gz

H - hk1

- hkrat

- hkw1

- hkw2

- hkwN

I - ibf

- ibuoy

- ichan

- icoas

- idissp

- iforce

- igmax

- igravt


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- ihmax

- ilaw

- ilevels

- immax

- invel

- iortho

- ipmax

- iread

- irinit

- irmax

- iskip

- istart

- isym

- iturb

- iuvw

- iwall

J

K

L - lambda

- lambdu

- lpois

M

- mgmax

N - nbcg

- nbf

- ncase

- ngrad

- nheat

- nimp

- nmax

- nmhd

- nmomt

- nodes

- nout

- nppe

- nskp

- ntrit

- nvel

- nwrite

O - omega

- ovrelx

P

Q - qht1

R - rem

- rho1

- rhow1

- rhow2

- rhowN

S - sbkf1

- sbkw1

- sbkw2

- sgam

- sgmf1

- sgmw1

- sgmw2

- sleng

- sratio

- ssig

T - tbet

- tref

- twal

U - ubar

- uin

V - visc1

- vratio

- vsw1

W

X - xcent

- xct2

Y - ycent

- yct2

Z - zcent

- zct2


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Variable Values Description

aamn Real Inlet section [aamn,aamx] [bbmn,bbmx]

aamx Real Inlet section [aamn,aamx] [bbmn,bbmx]

ad12 Real Fluid diffusion coefficient d1/d2 (for Tritium)

ak12 Real Fluid Solubility ratio k1/k2 (for Tritium)

alpha Real <=1 Pre-conditioning factor for other equations

alphu Real <=1 Pre-conditioning factor for momentum equation For fully-developed flow solver only

bangl Real B-field angle respect to ibf direction

bbmn Real Inlet section [aamn,aamx] [bbmn,bbmx]

bbmx Real Inlet section [aamn,aamx] [bbmn,bbmx]

bval Real B-field strength < 0.0: along opposite axis of ibf

bx0 Real <= xmin: B-field all constant > xmin: B-field ramped from bx0

c_rest Real Coefficient of contact resistance

cfl Real parameter used for variable time-step

cp1 Real Fluid specific heat capacity Cp1


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cpw1 Real Solid specific heat capacity (for imtype=3)

cpw2 Real Solid specific heat capacity (for imtype=4)

cpwN Real Solid specific heat capacity (imtype=5,6,7,8)

delbx Real (-delbx,delbx) is the gap for B to change nbf=20: parameter for B0 disruption with time

deltT Real Temperature difference (for Boussinesq fluid)

dfu1 Real Fluid diffusivity d1 (for Tritium)

dpdx Real 3-D problem:for initial condition (nvel=0,1,11) Fully-developed problem:(nvel=0,1,11 only) Ignored if nvel,|invel|=2,3,4,5,20

dratio Real Fluid density ratio = rho1/rho2

dtime Real > 0.0: constant dt=dtime < 0.0: variable time-step, minimum dt=|dtime|

dtfac Real dtime ratio for B-formulation

ecratio Real Fluid electrical conductivity ratio = sgmf1/sgmf2

epsln Real epsilon= 0.5*Mesh_size (default=0.1)

epsmin Integer Minimum Residual criterion (log)

gras Real Grashof number (input either gras or tbet)


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grid_scale Real > 0 scale x-y-z coordinates from UX file

gx Real Gravity x-component

gy Real Gravity y-component

gz Real Gravity z-component

hk1 Real Fluid thermal Conductivity k1

hkrat Real Heat conductivity ratio = k1/k2

hkw1 Real Solid thermal Conductivity (for imtype=3)

hkw2 Real Solid thermal Conductivity (for imtype=4)

hkwN Real Solid thermal Conductivity (imtype=5,6,7,8)

ibf Integer B-field direction index = 1-3: Along x-, y-, z-axis (default=2: y-axis)

ibuoy Integer =0: without buoyancy term =1: with buoyancy term

ichan Integer Channel type =0 : Rectangular channel without walls (Shercliff) =1 : Rectangular channel w/ conducting walls (Hunt) =2 : Half rect- channel w/ conducting walls (Hunt) =3 : 2-D channel w/ conducting walls =4 : two material testing =10: Circular duct without walls =11: Circular duct with conducting walls


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=12: Half circular duct with conducting walls =13: Annulus duct without walls =20: Material regions from mat.bin or .ugb file =21: Material regions from mat.lst (modified) =30: Modified Pb-Li concept (without mat.bin) =40: L-Shaped with conducting walls =50: Demo Case 1 (Mixed convection) =51: 3-D Lid-driven cavity =52: 3-D thin-wall rectangular enclosure =100:Others: User defined case

icoas Integer Number of iter. for coarse grid if MultiGrid

idissp Integer =0: without Viscous dissipation term =1: with Viscous dissipation term

iforce Integer =0: do not calculate force/moment =1: calculate force (Fx,Fy,Fz) on ivel=8 BC =2: calculate force and moment (Mx,My,Mz) on ivel=8 =3: calculate force and 3-D moment on ivel=8

igmax Integer Number of non-orthogonal iteration

igravt Integer =0: without Gravity term =1: with Gravity term

ihmax Integer Number of iterations for Heat equation with CG

ilaw Integer =0: Constant density and viscosity (default) =1: Sutherland's form =2: Arrhenius form =3: Linear inverse variation with temperature

ilevels Integer =0 : Single phase flow =1 : Two-phase flow, level-set equation solved =11: Special case: Broken dam =12: Special case: 2p_2d =13: Special case: jet_3d =14: Special case: Air-Water cooling


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immax Integer Number of iterations for MHD Poisson

invel Integer Inlet velocity BC option if imtype=0 = 0 : initially at rest (except inflow faces) = 1 : uniform (=ubar, default) = 2 : parabolic profile (cylindrical symmetry) = 20: 2-D parabolic profile = 3 : duct flow profile = 4 : Shercliff's flow profile = 5 : Hunt's flow profile = 10: User defined = 11: invel: inflow uniform along normal = 23: Use fully developed solution for 3-D nvel=-1: add perturbation to current solution invel<0: to calculate dpdx

iortho Integer =1: for orthogonal grid, without correction =2: Non-orthogonal correction

ipmax Integer Number of iterations for Pressure Poisson (PPE)

iread Integer Start/Restart 0: Fresh start 1: restart from qrestart.*.unf 2: restart from qrestart2.*.unf 9: restart from Tecplot file interpolation 1x: the same as x but with old qrestart* 20: restart for multi-grid -- coarse grid 21/22: restart for multi-grid -- fine grid

irinit Integer Skip steps to run reinitialization

irmax Integer Number of iterations for level-set reinitialization

iskip Integer >0 skip steps to output solution, default to nmax+1

istart Integer >=0 First step to output solution, default to iskip


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isym Integer Domain symmetric index = 0 : No symmetric (default) = 1-3: Symmetric along x-, y-, z-axis = 10 : Special use: wall U><0 for ichan=51 = 11 : Special use: center point (u,v,w) = 12 : Special use: kinetic energy (KU,Kb)

iturb Integer =0: No turbulence model =1: One-equation turbulence model =2: Two-equations (k-e model)

iuvw Integer Option for inflow/outflow direction = 1-3: Both inflow/outflow along x-, y-, z-axis

axis =11-13: Outflow along x-, inflow along x-,y-,z-

Axis =21-23: Outflow along y-, inflow along x-,y-,z-

Axis =31-33: Outflow along z-, inflow along x-,y-,z-

iwall Integer =0 : No wall function (unless defined by prep) =1 : Hartmann layer wall function only =10: wall function for insulating walls =11: wall function for insulating Hartmann walls =20: wall function for perfectly conducting

lambdu Real =1.0: No upwinding (default)

lambda <1.0: Upwing scheme parameter lambdu for Momentum, lambda for others

lpois Integer Poisson CG solver option =0: itmax=ipmax (default for nn<=3) =1: itmax=max(2*ipmax,200) if nn<=20 (default) =2: itmax=max(2*ipmax,5000) for nn=1 =3: itmax=5000 if resid>-2.0


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matpf Integer

mgmax Integer Number of MultiGrid iteration cycle (default 0)

nbcg Integer >=1: Heat equation with BiCG every nbcg steps <0 : Heat equation with BiCG at n=-nbcg

nbf Integer B-field function index =-1: Constant B-field = 0: Exponent function (default) = 1: Linear function = 2: Two-sides Exponent function = 3: tanh-function for Alex = 4: tanh-function for BOB > 1x: Same function as 0 ~ 4 but decreasing = 20: plasma disruption (B0 reduced with time)

ncase Integer>=-1 =-1 : default, general purpose = 0~8: special cases for ppe or mhd benchmark >= 10: special cases for heat benchmark

ngrad Integer Best choice: ngrad=5 or 2 =1 : grad(phi) from subr. gradient =2 : grad(phi) from face values averaged (default) =3 : grad(phi) from face values & non-orth averaged =4 : grad(phi) by least-sqaure scheme =5,6: grad(phi) by conservative scheme

nheat Integer =0: Heat equation not solved =1: Heat equation: with Crank-Nicholson if mod(n,nbcg)><1 and n><-nbcg =2: Heat equation: with BiCG, w/o time & adv terms =6: Heat equation: with BiCG, w/o time term

nimp Integer =1: Crank-Nicholson for Heat equation (default) =2: Fully implicit scheme


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nmax Integer Maximum number of steps to run = 0: write initial values for check and stop < 0: iread = 0: write material region data only iread > 0: reset nstart and nmax=|nmax| re-calculate material properties

nmhd =0 :Not solve MHD Poisson equation =1 :Solve MHD equation with CG =2 :Solve MHD equation with relaxation solver =3 :Solve 2-D MHD with d/dz=0, with source term =4 :Solve MHD B-formulation equation explicitly =5 :Solve MHD equation with K-saved CG =10:Solve MHD B-formulation equation implicitly =11:Solve MHD induced magnetic b-field explicitly

nmomt Integer =0 : Momentum equation not solved =1 : Momentum equation solved >=10: Simple scheme, no Fractional-Step

nodes Integer >0 Number of CPUs

nout Integer = 0: default (no other output) = 1: output BC/internal face values (bcfac.NNN.dat) = 2: output cell center values (qcent.NNN.dat) = 3: output both BC face & cell center values = 5: energy conservation check (energy.dat) =10: output debug data (debug.NNN.dat) =11: append debug data (debug.NNN.dat) =20: output user-defined face/cell center values (debug_u.NNN.dat)

nppe Integer =0: Not solve Pressure Poisson equation =1: Solve Pressure Poisson eq with CG =2: Solve Pressure Poisson eq w/ relaxation solver =3: Solve Pressure Poisson eq with K-saved CG (iprs=2: also update qface(4) at multk) =5: Solve Pressure Poisson eq with K-saved CG


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nskp Integer skip steps for output residuals, etc.

ntrit Integer =0: Tritium transport not solved =1: Tritium transport solved

nvel Integer Initial velocity option if imtype=0

nwrite Integer skip steps to write restart files = 0: write qrestart.*.unf at n=nmax = -1: for nvel=23 only (reset to |nmax|) write fully developed solution for restart <=-2 : write extra data for future use > nmax : no restart files written <= nmax: write qrestart*.*.unf every nwrite step

omega Real >=1 Acceleration factor (default=1.00)

ovrelx Real relaxation factor for Relaxation solver For PPE/MHD:= 1.92 for serial = 1.0 for parallel/multi-grid For SIMPLE: any given

qht1 Real Fluid heat source Q (for tritium & heat equations)

rem Real Magnetic Reynolds number for B-formulation

rho1 Real Solid viscosity (Wall 2) (default=vsw1)

rhow1 Real Fluid density (phi>0 for level-set)

rhow2 Real Solid density (Wall 2) (default=rhow1)

rhowN Real Solid density (N=3,4,5,6 == imtype=5,6,7,8)

sbkf1 Real Fluid seebeck coeff


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sbkw1 Real Solid seebeck coeff (for imtype=3)

sbkw2 Real Solid seebeck coeff (for imtype=4)

sgam Real Extra surface tension term coef.

sgmf1 Real Fluid electrical conductivity sigma1

sgmw1 Real Solid electrical conductivity (for imtype=3)

sgmw2 Real Solid electrical conductivity (for imtype=4)

sleng Real Reference length (default=grid_scale)

sratio Real Fluid seebeck ratio = sbkf1/sbkf2

ssig Real Surface tension coefficient (for level-set)

tbet Real Boussinesq volumetric expansion coef

tref Real Reference temperature (initial temperature)

twal Real > 0 Conducting wall thickness (for Cw and ymax, ymin)

ubar Real mean inflow velocity > 0.0: along axis (default=1.0) < 0.0: opposite to axis

uin Real Another mean inflow velocity value

visc1 Real Fluid dynamic viscosity v1 (kg/m-s-myu=rho*nyu)

vratio Real Fluid viscosity ratio = v1/v2


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vsw1 Real Solid viscosity (Wall 1) (default=1.e10*v1)

xcent Real Torque center x-coordinate

xct2 Real Torque axis x2 (iforce=3)

ycent Real Torque center y-coordinate

yct2 Real Torque axis y2 (iforce=3)

zcent Real Torque center z-coordinate

zct2 Real Torque axis z2 (iforce=3)

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