CFD Pro 14.5 L02 Introduction to WB

7/23/2019 CFD Pro 14.5 L02 Introduction to WB

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© 2013 ANSYS, Inc. December 12, 2013 1 Release 14.5

14. 5 Release

Introduction to ANSYS

CFD Professional

Lecture 02

Introduction to ANSYS Workbench




Contents

• The purpose of ANSYS Workbench

• Basic use of Workbench

• How to share data between applications

• Working with files, and archiving and restoring projects

• Performing parametric analyses

• CAD Import




ANSYS Workbench

ANSYS Workbench is a project-management tool. It can be considered as

the top-level interface linking all our software tools.Workbench handles the passing of data between ANSYS Geometry / Mesh /

Solver / Postprocessing tools. It also allows import from and integration

with 3rd-party CAD packages.

This greatly helps project management. You do not need worry about the

individual files on disk (geometry, mesh etc). Graphically, you can see at-a-glance how a project has been built.

Because Workbench can manage

the individual applications AND

pass data between them, it is easy

to automatically perform designstudies (parametric analyses) for

design optimisation.




Workbench Overview

The options visible in the

Toolbox show all theproducts (systems) you

have licenses for.

TIP: If this list appears

empty, you have a

problem with your

licensing!

“Analysis Systems” are ready-

made stencils that include all

the individual systems

(applications) needed for

common analyses ( for example

Geometry + Mesh + Solver +

Post-Processor)

“Component Systems” are the

individual building-blocks for

each stage of the analysis

“Design Exploration”provides tools for

optimising designs and

understanding the

parametric response.




Basic Workflow

Dragging an Analysis System on to the

Project Schematic lays out a workflow,

comprising all the steps needed for a

typical analysis.

Workflow is from top to bottom. As

each stage is complete, the icon at the

right-hand side changes




Alternative Workflow

An analysis can also be built from individual Component Systems, linking them together

with connectors.

There are three ways to create connectors:1) Use the mouse to draw a line (eg A2 to B2, B3 to C2 etc)

2) Drop the new system on the cell of the upstream one

3) Right-click on cell and choose Transfer Data to New or Transfer Data from New

square connector for shared data round connector for data transfer


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Cell StatesAs each stage in the model-build is completed, the state

of the cell changes.

Status after creating

Geometry in A2, not yet

opened mesh in A3

Status after model has

converged, waiting for

post-processing

Icon Meaning

Up to Date

Refresh required. Upstream data has changed

Update required. Local data has changed

Unfulfilled. Upstream data does not exist

Attention Required

Solving

Update Failed

Update Interrupted

Changes pending (was up-to-date, but upstream

data has changed)



File Location on Disk

Should you need to identify the individual files on your disk for each stage of the

project, these can be found by enabling View > Files. The resulting table will cross-reference the directory and filename with the project cells.

Filename Directory



Use of Archive / Restore

The workbench project comprises many files and directories. If you need to

either archive the project, or bundle it to send to us for a Technical Supportquery, use the ‘Archive’ tool. This generates a single zipfile of the entire project.

When archiving, you can

choose whether to include

the computed result files ornot (omitting these may

make it small enough to send

by email)



Working with Parameters / Refresh and Update

• To make changes, you can manually open up a component cell (e.g. geometry)

• Or: most Workbench applications will let you specify key quantities as a parameter. A

new object ‘Parameter Set’ appears on the Project schematic. • You then need to update your model. From Workbench you can choose to then update

the entire project, or just a single cell.

Refresh: Reads upstream data, but will not do any lengthy operation like solving or meshing.

Update: Performs both a Refresh, AND generates the new output

1] Clicking here will let you modify the

parameters centrally, without having to

open the individual application.

2] “Update Project” will then work througheach component in turn (geometry > mesh

> solver ) to compute the new design point.

3] However you may want to update an

individual component (eg to preview thenew geometry before proceeding).

Right-click on a individual cell.




Two approaches

• Approach I (Import)

– Import neutral/native CAD files

directly into DesignModeler

– Uni-directional connectivity

• Approach II (Direct Connection)

– Use Plug-In (Associative Interface)

– Bi-directional CAD Connectivity

– ANSYS Direct CAD Interface

CAD Connections: Introduction

Pro/ENGINEER

DM




CAD Connections: Import Properties

• These are options for CAD import and data transfer

• Right click on Geometry cell on Project Schematics and selectProperties or select Tools > Options > Geometry Import to set

globally

Basic Properties :

• Select ‘Parameters’ option for importing parameters defined in

CAD package. The ‘Parameter Key’ is a filter

• Similarly, Named Selections key controls the selections fromCAD entering WB

Advanced Properties :

• Select ‘Use Associativity’ to establish association between CAD

and WorkBench for plug-in in Approach II




Three ways to import file in WB

• Import option on Workbench

project page (File Import)

• Geometry cell on project page

– Right click for Context Menu

•Import in existing DM session

– Appends the geometry file to

existing geometry in DM

– Multiple imports possible

CAD Connections: Approach I




Launch Workbench from CAD system

• Bi-Directional CAD Connectivity

– Export parameters from CAD to

Workbench

– Parameter change in CAD reflects inWorkbench and vice versa

• Bidirectional import from DM session

– Attach to Active CAD Geometry

– Imports active CAD geometry in DM

– Can attach only saved CAD sessions• Parameter Key

– Prefix key for importing parameters

– Default filter set to DS. Remove to

import all parameters

CAD Connections: Approach II

Direct CAD Connection in UG NX

Parameter Check

Box & Key

Attach option

in DM




CAD Connections: Bi-Directional CAD

Pro/ENGINEERDesignModeler

Parameterized Hole Dia

and No of Holes

Parameters from

CAD to Workbench

Parameters from

Workbench to CAD

Parameter Manager




Named Selections

• Define in CAD & transfer to WB

• Define directly under WB

• Named Selection filter under WB

– By default the filter is set to NS – Available if the “Import Named

Selections” option is set to Yes

– Default filter set to NS. Remove to

import all parameters

CAD Connections: Named SelectionManager

Named Selection

Manager in UG NX

Workbench Geometry

Import Options




Summary

ANSYS Workbench is a convenient way of managing your simulation projects.

Workbench is used to launch the individual software components, and used to

transfer data between them.

It is easy to see at-a-glace how a model has been built, and determine which files

were used for a particular simulation (pairing geometry files to solver runs)

Workbench also makes it straightforward to perform parametric analyses (without

the user needing to manually launch each application in turn), and makes it easy tosimulate multi-physics scenarios like fluid-structure interaction.

Documents

CFD Pro 14.5 L02 Introduction to WB