Introductory FLUENT - dl.ptecgroup.irdl.ptecgroup.ir/.../fluent12-lecture01-welcome.pdf ·...

1-1ANSYS, Inc. Proprietary

© 2009 ANSYS, Inc. All rights reserved.April 28, 2009

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Introduction

and Welcome

Introductory FLUENT

Training

www.ptecgroup.ir

Introduction



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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



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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



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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


Introduction



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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


3:15 – 3:45 Lecture – Transient Flow Modeling


4:15 – 5:00 Lecture – Postprocessing with FLUENT / CFD-Post

Introduction



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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



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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

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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



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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



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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



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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



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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.



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Appendix

Introduction



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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



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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.

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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

http://www.ansys.com/industry/nonlinear/examples/bootseal3d_bg.htm

http://www.ansys.com/industry/nonlinear/examples/bootseal3d_bg.htm

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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



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Training Manual

CFX-Mesh

ANSYS Workbench Overview

Advanced CFD

Design Exploration

FE Modeler

Meshing Application

Mechanical

DesignModeler

ANSYS Workbench

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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.

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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.

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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.

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Training ManualGAMBIT

• A single, integrated

pre-processor for CFD

analysis.

– Geometry creation

– Mesh generation

– Mesh quality

examination

– Boundary zone

assignment

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Training ManualTGrid

• A pre-processor for

tet/hybrid mesh

generation.

• Useful when starting

with triangular

surface mesh.

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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.

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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

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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

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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

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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

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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

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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



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Training ManualCFX-Mesh Overview

• Hybrid mesh approach

• Triangular surface mesh

• Prismatic/Inflated mesh

• Pyramidal intermediate elements

• Tetrahedral mesh generator

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