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Transcript of Introductory FLUENT - dl.ptecgroup.irdl.ptecgroup.ir/.../fluent12-lecture01-welcome.pdf ·...
1-1ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Introduction
and Welcome
Introductory FLUENT
Training
www.ptecgroup.ir
Introduction
1-2ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualOrientation
• Agenda
• Facilities
– Lunches
– Restrooms
– Smoking area
– Visitor parking
– Visitor badges
• Goals of introductory FLUENT training
– Problem setup
• Create the solid model -- ing the model – Geometry and mesh generation
• Using the solver – Problem setup, execution, and postprocessing
– Register for and learn to use the on-line self-help resources
– Begin your own CFD project
• We recommend working on relevant DesignModeler, Meshing and FLUENT workshops first.
Monday Tuesday Wednesday Thursday Friday
DesignModelerMeshing
Application
FLUENT
(Part 1)
FLUENT
(Part 2)
One-on-One
Consulting
Introduction
1-3ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFLUENT is an ANSYS Product
• ANSYS, Inc.
– Global Headquarters in Canonsburg, PA (south of Pittsburgh)
• Development and sales offices in U.S. and around the world
• Publicly traded on NASDAQ stock exchange under “ANSS”
Introduction
1-4ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualAgenda (Day 1)
8:30 – 8:45 Introduction and Welcome
8:30 – 9:00 Lecture – Introduction to CFD Analysis
9:00 – 9:30 Demonstration – Overview of the CFD Process
9:30 – 10:30 Workshop
10:30 – 11:15 Lecture – Solver Basics
9:30 – 10:30 Workshop
12:00 – 1:00 Lunch
1:00 – 2:00 Lecture – Boundary Conditions
2:00 – 3:00 Workshop
3:00 – 4:00 Lecture – Solver Settings
4:00 – 5:00 Workshop
Introduction
1-5ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualAgenda (Day 2)
8:30 – 9:30 Lecture – Turbulence Modeling
9:30 – 10:15 Workshop
10:15 – 11:00 Lecture – Heat Transfer Modeling
11:00 – 11:30 Workshop
11:30 – 12:30 Lecture – User Defined Functions
12:00 – 1:00 Lunch
1:00 – 2:30 Lecture – Advanced Physics
2:30 – 3:15 Workshop
3:15 – 3:45 Lecture – Transient Flow Modeling
3:45 – 4:15 Workshop
4:15 – 5:00 Lecture – Postprocessing with FLUENT / CFD-Post
Introduction
1-6ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFluent User Services Center
• Access the USC by visitingwww.fluent.com
• Please register today!
• Services include
– Product information
– Update downloads
– Documentation
– Supported platforms
– Defects and workarounds
– Presentations
– Training materials
– Online technical support
• An OTS overview and
demo is available via web-
based training.
• Quick reference guide
Introduction
1-7ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualUser Services Center Registration
• Using a web browser, access the FLUENT corporate web page at www.fluent.com
– Find Customer Resources under Services
– Click the User Services Center link
• After registering, you will receive an e-mail with
your USC login and password at the address you
provided on the registration page
Introduction
1-8ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualRequesting Technical Support
• The FLUENT User Services Center (USC) provides a complete suite of self-help resources
– Commercial customer registration:www1.ansys.com/customer/New_Login.asp
– Academic customer registration:www.fluent.com/software/university/usc_student_form.htm
• Commercial users access the Online Technical Support (OTS) portal to interact with the product support staff
– Available around-the-clock.
– Search the Solutions database, maintained by the support staff
– Create a new Support Request
– Interact with the support staff
– Retrieve previous support cases at any time for reference
• Academic users request support by email [email protected]
Introduction
1-9ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualOnline Technical Support
• Access from the USC
– Same account as USC
– Services include:
• Find solutions
• Ask a technical support question
• Monitor status of previous question
• Automatic updates
– A web-based training module is available for download.
• Exchange files with support staff (anonymous FTP)– ftp to ftp.fluent.com
– Log in as ftp and use your e-mail address as the password.
– cd to incoming/xxx or outgoing/xxx and put/get files in binary mode.
• The support engineer will provide the xxx
Introduction
1-10ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualWeb-Based Training Modules
• Web-based training
modules are available
from the USC training
area.
• These modules can be
downloaded to your
computer and viewed
at your leisure.
• New courses are being
planned and will
become available in the
near future.
www.learningcfd.com/login/online/index.htm
Introduction
1-11ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualDocumentation
Fluent 12 Documentation Web Page atwww.fluentusers.com
• Documentation for all products is
available at the FLUENT User
Services Center.www.fluentusers.com
• A separate CD for each product is
available which contains all
manuals for that product.
• Two formats are available
– HTML – Useful for general viewing
and searching. Limited printing.
– Adobe Portable Document Format
(PDF) – Useful for printing high
quality pages.
Introduction
1-12ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualTraining Evaluation
• Evaluation forms handed out
with training materials.
• Your feedback helps us improve
our training materials and
methods.
• Please turn in your evaluations
forms before you leave.
1-13ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Appendix
Introduction
1-14ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFLUENT Products Integrated Into ANSYS Product Suite
• FLUENT – General purpose CFD solver for a wide range of industries.
• Polyflow – Spectral element solver used for extrusion, blow molding
and viscoeleastic flow applications.
• FLUENT for CATIA – FLUENT is embedded in CATIA 5 to allow CFD
to be done in the CATIA PLM environment.
• GAMBIT – Preprocessor for FLUENT, Fidap and Polyflow
• TGrid – Preprocessor that can generate a tet/hybrid mesh from an
imported surface mesh.
• See the Appendix for more details on these products.
Introduction
1-15ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFLUENT Products Integrated into ANSYS Product Suite
• Icepak – Has a custom-built interface on top of FLUENT solver used
for analyzing electronics cooling applications.
• Airpak – Has a custom-built interface on top of FLUENT solver used
for solving ventilation/environmental contamination problems.
• MixSim - Has a custom-built interface on top of FLUENT solver used
to solve mixing tank problems
• See the Appendix for more details on these products.
Introduction
1-16ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualOther ANSYS Products
ANSYS, Inc. Family of Products include the following:
• ANSYS Workbench – Complete environment for geometry modeling, mesh manipulation, structural/thermal analysis, and optimization, which is tightly integrated with CAD packages.
• ANSYS Mechanical APDL – Advanced mechanical and multiphysics FEA solution capabilities utilizing the traditional ANSYS user interface.
• ANSYS CFD – State-of-the-art CFD solvers, including CFX and FLUENT.
• ANSYS AUTODYN – Explicit dynamic solver for transient non-linear simulations involving large deformations and strains, non-linear material behavior, non-linear buckling, complex contact, fragmentation, and shock wave propagation.
• ANSYS LS-DYNA – LSTC’s LS-DYNA explicit dynamic solver technology with the pre-/post-processing power of ANSYS software. This powerful pairing can be used to simulate crash tests, metal forging, stamping, and catastrophic failures.
• ANSYS ICEM CFD – Powerful meshing tools with general pre- and post-processing features, including ICEM CFD for generating complex CFD grids and AI*Environment for creating sophisticated structural FEA meshes.
• ANSYS EKM – Engineering Knowledge Manager
Introduction
1-17ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualANSYS Workbench Overview
• What is ANSYS Workbench?
– ANSYS Workbench provides powerful methods for interacting with the ANSYS family of solvers. This environment provides a unique integration with CAD systems, and your design process.
• ANSYS Workbench is comprised of various applications (some examples):– Mechanical for performing structural and thermal analyses using the ANSYS solver
• Meshing is also included within the Mechanical application
– Fluid Flow (CFX) for performing CFD analyses using CFX
– Fluid Flow (FLUENT) for performing CFD analyses using FLUENT
– Geometry (DesignModeler) for creating and modifying CAD geometry to prepare the solid model for use in Mechanical.
– Engineering Data for defining material properties
– Meshing Application for generating CFD and Explicit Dynamics meshes
– Design Exploration for optimization analyses
– Finite Element Modeler (FE Modeler) for translating a NASTRAN and ABAQUS mesh for use in ANSYS
– BladeGen (Blade Geometry) for creating blade geometry
– Explicit Dynamics for explicit dynamics simulations featuring modeling of nonlinear dynamics
Introduction
1-18ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training Manual
CFX-Mesh
ANSYS Workbench Overview
Advanced CFD
Design Exploration
FE Modeler
Meshing Application
Mechanical
DesignModeler
ANSYS Workbench
Introduction
1-19ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFLUENT
• FLUENT applications:
– External/internal automotive flows and
in-cylinder flows
– High-speed aerodynamics
– Rocket flows
– Turbomachinery
– Chemical reactors
– Cyclones
– Bubble columns
– Mixing vessels
– Fluidized beds
– Flow-induced noise
– Moving and dynamic mesh
– Many more!
Surface pressure distribution
in an automotive engine
cooling jacket.
Instantaneous solids
concentration in a riser
indicating uniform distribution
of catalyst at the riser head.
Introduction
1-20ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualPOLYFLOW
• POLYFLOW is a finite element
solver for laminar, viscous
flows
• Useful with complex rheology
and free surfaces.
• Applications:
– Extrusion, coextrusion, die
design
– Blow molding, thermoforming
– Film casting, glass sheet
forming/stretching, fiber
drawing
– Chemical reactions, foaming
– Viscoelastic flows (“memory
effects”)
Inverse Die Design:
Determines die geometry
based upon desired
extruded shape.
Requested part shape and
calculated die lip shape for a
rubber car door seal.
Blow molding simulation
of a gas tank using the
membrane element.
Introduction
1-21ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualFLUENT for CATIA
• FLUENT for CATIA V5 brings CFD analysis into the CATIA V5 PLM environment.
• Fully imbedded in the analysis infrastructure of CATIA V5:
– Flow volume extraction
– meshing
– simulation
– post-processing
– knowledgeware and
data management
• Full generative associativity
between geometry and CFD
models
• FLUENT for CATIA V5 can be
deployed throughout the full
product life cycle.
Introduction
1-22ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualGAMBIT
• A single, integrated
pre-processor for CFD
analysis.
– Geometry creation
– Mesh generation
– Mesh quality
examination
– Boundary zone
assignment
Introduction
1-23ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualTGrid
• A pre-processor for
tet/hybrid mesh
generation.
• Useful when starting
with triangular
surface mesh.
Introduction
1-24ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualIcePak
• IcePak is focused on electronics cooling design:
– Cooling airflow, heat conduction, convection and radiation heat transfer
• The user interface and automatic
meshing are tailored for applications such as:
– Cabinet design
– Fan placement
– Board-level design
– Heat sink evaluation
Flow pathlines and temperature distribution
in a fan-cooled computer cabinet.
Introduction
1-25ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualAirPak
• Simplifies the design and analysis of
ventilation systems
• Accurate, quick, and easy-to-use design tool
that empowers designers and professionals,
without extensive backgrounds in computer
applications, to utilize the powers of
advanced CFD tools
• Optimize your designs or pinpoint problems
based on accurate predictions of airflow
patterns, thermal conditions, comfort
conditions, and/or contamination control
effectiveness
Introduction
1-26ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualMixSim
• MixSim is a specialized user interface that allows quick and easy set-
up of mixing tank simulations.
• The tank size, bottom shape, baffle configuration, number and type of
impellers, etc. are specified directly.
• The mesh and complete problem definition are then automatically
created.
• Other features
– Impeller libraries from leading equipment
manufacturers
– Transient sliding mesh, steady-
state multiple reference frame
models
Non-Newtonian fluid rheology
Introduction
1-27ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualANSYS Workbench Overview
• ANSYS Workbench also consists of the TurboSystem, which is an
industry specific solution for designing rotating machines. It consists
of the following additional modules:
– BladeModeler an efficient 3-D rotating machinery design tool for bladed
components.
– TurboGrid a high quality hexahedral meshing tool for blade design.
BladeModeler TurboGrid
Introduction
1-28ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualDesignModeler Overview
• DesignModeler (DM) is a component of ANSYS Workbench.
• A CAD-like modeler with analysis modeling goals:
– Contains unique geometry modification capabilities for simulation:
• Feature Simplification
• Enclosure Operation
• Fill Operation
• Spot Welds
• Split Surfaces
• Surface Model Extraction
• Planar Body Extraction
• Beam Modeling
Introduction
1-29ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualDesignModeler Overview
• Contains parametric modeling
capability:
– 2D Sketcher with Dimensions
and Constraints
• Integrates directly with
ANSYS Workbench
modules
– Simulation
– CFX-Mesh
– Advanced Meshing
(ICEM)
– DesignXplorer
– BladeModeler
Introduction
1-30ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualCFX-Mesh Overview
• CFX-Mesh is a component of Workbench designed for generating CFD meshes for the ANSYS CFX Solver.
• Creates mesh in “solid” regions– Simple user inputs
– Tightly coupled with DesignModeler
– Hybrid mesh approach
– Capable of generating large meshes
– Advanced mesh refinement controls
– Produces a “native-format” CFX gtm file
• Supports many different mesh
types:
– Hex/Tet/Hybrid meshes
– Triangular surface meshes
– Prismatic / inflated meshes
– Pyramidal intermediate
elements. CFX-Mesh
Introduction
1-31ANSYS, Inc. Proprietary
© 2009 ANSYS, Inc. All rights reserved.April 28, 2009
Inventory #002600
Training ManualCFX-Mesh Overview
• Hybrid mesh approach
• Triangular surface mesh
• Prismatic/Inflated mesh
• Pyramidal intermediate elements
• Tetrahedral mesh generator