intro to fluent

© 2006 ANSYS, Inc. All rights reserved. ANSYS, Inc. Proprietary

Introduction to FLUENTIntroduction to FLUENT

Introductory FLUENT TrainingIntroductory FLUENT Training

1-2© 2006 ANSYS, Inc. All rights reserved. ANSYS, Inc. Proprietary

Fluent User Services Center

www.fluentusers.com

Introductory FLUENT NotesFLUENT v6.3 December 2006

FLUENT is an ANSYS Product

ANSYS, Inc. Global Headquarters in Canonsburg, PA - USA (south of Pittsburgh)

Development and sales offices in U.S. and around the worldPublicly traded on NASDAQ stock exchange under “ANSS”

All FLUENT products will be integrated into the ANSYS product line.



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OrientationAgenda

FacilitiesLunchesRestroomsSmoking areaVisitor parkingVisitor badges

Goals of introductory FLUENT trainingProblem setup

Creating the model – Geometry and mesh generationUsing the solver – Problem setup, execution, and postprocessing

Establish contact with your support staffBegin your own CFD project

We recommend working on relevant FLUENT and GAMBIT tutorials first.

One-on-One Consulting

GAMBIT(Part 2)

GAMBIT(Part 1)

FLUENT(Part 2)

FLUENT(Part 1)

FridayThursdayWednesdayTuesdayMonday



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Agenda (Day 1)

8:00 – 8:30 Introduction to ANSYS/Fluent8:30 – 9:00 Lecture – Introduction to CFD Analysis9:00 – 9:30 Demonstration: Overview of the CFD Process9:30 – 11:15 Tutorial Session – Tutorial #1 (3D Mixing Elbow)11:15 – 12:00 Lecture – Solver Basics

12:00 – 1:00 Lunch

1:00 – 2:00 Lecture – Boundary Conditions2:00 – 3:00 Tutorial Session3:00 – 4:00 Lecture – Solver Settings4:00 – 5:00 Tutorial Session



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Agenda (Day 2)

8:00 – 9:00 Lecture – Turbulence Modeling9:00 – 10:30 Tutorial Session10:30 – 11:15 Lecture – Heat Transfer Modeling11:15 – 12:00 Lecture – User Defined Functions

12:00 – 1:00 Lunch

1:00 – 2:00 Lecture (Optional) – Multiphase Modeling2:00 – 3:00 Lecture (Optional) – Reacting Flow Modeling3:00 – 4:00 Lecture (Optional) – Moving Zone Models4:00 – 5:00 Tutorial Session



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Technical Support

Eleven business teamsTurbomachinery & AircraftSpace, Defense & MarineElectronics and SemiconductorGlass, Plastics & MaterialsPower GenerationChemicals and Consumer ProductsPetroleumHealth Care and WaterHVAC and AppliancesAutomotive – Power TrainAutomotive – Aerodynamics/Thermal

Each team has its own sales and support/consulting engineers.FLUENT’s User Services Center (USC) and Online Technical Support (OTS) portal created to enhance your access to technical support.



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www.fluentusers.comPlease register today!Services include

Release informationDownload updatesDocumentationSupported platformDefects and workaroundsPresentationsTraining materialsOnline technical support

OTS overview and demo via web-based trainingQuick reference guide



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User Services Center Registration

Using a web browser, access the FLUENT corporate web page at www.fluent.com

Take the Technical Support link under Services.Scroll down and click the Register Now button.

After registering, you will receive an e-mail with your USC login and password at the address you provided on the registration page.



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Online Technical SupportAccess from the USC

Same account as USCServices include:

Find solutionsAsk a technical support questionMonitor status of previous questionAutomatic updates

A web-based training module is available for download.

Exchange files with support staff (anonymous FTP)

ftp to ftp.fluent.comLog in as ftp and use your e-mail address as the password.cd to incoming/xxx or outgoing/xxx and put files in binary mode.

xxx are the support engineer’s initials.



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Web-Based Trainings

Web-based training courses are available from our LearningCFD.com web site.Modules can be downloaded to your computer and viewed as many times as you likeMore modules are planned and will be available in the near future.

www.learningcfd.com/login/online/index.htm



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ANSYS U.S. Regional Conferences

2007 User Group Meetings plannedSouth – Houston, TX (February)East – Washington DC area (April)West – California (May)North – Detroit area (September)

Attend an ANSYS Regional Conference and:

Meet with ANSYS/FLUENT users and staff.Attend training seminars.Learn other applications presented by users and staff.Provide input to future software development

Exact dates will be announced in FLUENT publications.

www.fluent.comFluent NewsFluent eNewsANSYS Solutions



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FLUENT Products Integrated Into ANSYS Product Suite

FLUENT – General purpose CFD solver for a wide range of industries.Fidap – Finite element-based CFD solver used for polymer processing applications.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 PolyflowTGrid – Preprocessor that can generate a tet/hybrid mesh from an imported surface mesh.

See the Appendix for more details on these products.



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FLUENT 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 problemsFloWizard – Has a wizard-driven interface that sits on top of FLUENTand GAMBIT that can be easily used by non-CFD specialists.CoolSim – An interface to perform analysis of data center air flow and cooling load requirements.

See the Appendix for more details on these products.



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Other ANSYS Products

ANSYS, Inc. family of products include the following:ANSYS – Advanced nonlinear mechanical and multiphysics FEA solution capabilitiesANSYS Workbench – Complete environment for geometry modeling, mesh manipulation, structural/thermal analysis, and optimization, which is tightly integrated with CAD packages.ANSYS CFX – General purpose CFD solver, including the coupled, parallel ANSYS CFX solver.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



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ANSYS Workbench Overview

ANSYS Workbench comprises seven modules:Simulation for performing structural and thermal analyses using the ANSYSsolverCFX-Mesh for generating a mesh for the ANSYS CFX solverDesignModeler for creating and modifying CAD geometry to prepare the solid model for use in Simulation or CFX-MeshDesignExplorer and DesignExplorer VT for investigating the effect of variations input to the response of the systemFE Modeler for translating a Nastran mesh for use in ANSYSAdvanced CFD for performing CFD analyses using the ANSYS CFX solver.Advanced Meshing for generating complex CFD grids and sophisticated structural FEA meshes using ICEM CFD



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CFX-Mesh


Advanced CFD

DesignXplorer (VT)

FE Modeler

Advanced Meshing

Simulation

DesignModeler

ANSYS Workbench



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Documentation

Fluent 6.3 Documentation Web Page atwww.fluentusers.com

Documentation for all products is available at www.fluentusers.comA 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.



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Training 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.

© 2006 ANSYS, Inc. All rights reserved. ANSYS, Inc. Proprietary

AppendixAppendix



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FLUENT

FLUENT applications:External/internal automotive flows and in-cylinder flowsHigh-speed aerodynamicsRocket flowsTurbomachineryChemical reactorsCyclonesBubble columnsMixing vesselsFluidized bedsFlow-induced noiseMoving and dynamic meshMany 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.



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FIDAP

FIDAP application examples:Polymer processing – Non-Newtonian flow in extrusion diesThin film coatingBiomedical – Oxygenators, blood pumps, deforming arteries.Semiconductor crystal growthOther metal, glass, can chemical processing problems.

Rigid artery

Deforming artery

Time History Plot of Wall Shear Rate Showing Effect of Wall Deformations.

VelocityContours

Pulsatile Flow in an Artery with a Compliant Vein Graft

Initial Mesh

RigidWall

RigidWall

CompliantWall

( )tUU ω= sin0inlet



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POLYFLOW

POLYFLOW is a finite element solver for laminar, viscous flowsUseful with complex rheology and free surfaces.Applications:

Extrusion, coextrusion, die designBlow molding, thermoformingFilm casting, glass sheet forming/stretching, fiber drawingChemical reactions, foamingViscoelastic 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.



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FLUENT for CATIA V5 brings CFD analysis into the CATIA V5 PLM environment. Fully imbedded in the analysis infrastructure of CATIA V5:

Flow volume extractionmeshingsimulationpost-processingknowledgeware and data management

Full generative associativity between geometry and CFD modelsFLUENT for CATIA V5 can be deployed throughout the full product life cycle.



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GAMBIT

A single, integrated pre-processor for CFD analysis.

Geometry creationMesh generationMesh quality examinationBoundary zone assignment



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TGrid

A pre-processor for tet/hybrid mesh generation.Useful when starting with triangular surface mesh.



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IcePak

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 designFan placementBoard-level designHeat sink evaluation

Flow pathlines and temperature distribution in a fan-cooled computer

cabinet.



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AirPak

Simplifies the design and analysis of ventilation systemsAccurate, 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 toolsOptimize your designs or pinpoint problems based on accurate predictions of airflow patterns, thermal conditions, comfort conditions, and/or contamination control effectiveness



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MixSim

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 featuresImpeller libraries from leading equipment manufacturersTransient sliding mesh, steady-state multiple reference frame modelsNon-Newtonian rheology



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FloWizardOur first general purpose CFD product for non-specialists driven by FLUENT and GAMBIT.FloWizard’s focus is on ease of use and automation:

It is a highly-automated, “first pass” simulation tool for use in basic flow and heat transfer calculations.A wizard-based interface guides the user through all the steps of a CFD analysis, from problem set-up to post-processing.The user is insulated from specialized CFD parameters, such as discretization and turbulence model choices.



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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



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DesignModeler Overview

DesignModeler

DesignModeler (DM) is a component of ANSYS Workbench.A CAD-like modeler with analysis modeling goals:

Performs unique geometry modification capabilities for simulation:

Feature SimplificationEnclosure OperationFill OperationSpot WeldsSplit SurfacesSurface Model ExtractionPlanar Body ExtractionBeam Modeling



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DesignModeler Overview

Contains parametric modeling capability:

2D Sketcher with Dimensions and Constraints

Integrates directly with ANSYS Workbench modules

SimulationCFX-MeshAdvanced Meshing (ICEM)DesignXplorerBladeModeler

DesignModeler



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CFX-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 inputsTightly coupled with DesignModelerHybrid mesh approachCapable of generating large meshesAdvanced mesh refinement controlsProduces a “native-format”CFX gtm file CFX-Mesh



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CFX-Mesh Overview

Hybrid mesh approach

Triangular surface mesh

Prismatic/Inflated mesh

Pyramidal intermediate elements

Tetrahedral mesh generator

intro to fluent

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