+ All Categories
Home > Documents > ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post,...

ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post,...

Date post: 31-Jan-2018
Category:
Upload: trinhtuong
View: 251 times
Download: 1 times
Share this document with a friend
25
© 2013 ANSYS, Inc. October 7, 2013 1 ANSYS Release 15.0 Structural Mechanics Highlights ANSYS Inc. CADFEM (AG) Suisse
Transcript
Page 1: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 1

ANSYS Release 15.0 Structural Mechanics Highlights

ANSYS Inc.

CADFEM (AG) Suisse

Page 2: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 2

Motivation for Mesh Assemblies

Geometry is not anymore the starting point of a Workbench based structural simulation.

Multiple finite element models can be assembled and leverage all Mechanical functionalities, including contact detection.

Page 3: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 3

15.0 Serial Improvements

(4 CPU)

Parallel part by part meshing

(1 CPU)

Page 4: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 4

Page 5: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 5

Bolt Thread modeling without meshing the thread provides faster solutions while retaining a good level of accuracy.

True Thread Simulation Bolt Section Method

10 times faster! Wall Time Elements

True Thread Model 115 hrs 1.1 M

Bolt Section Method 12.75 hrs 69K

3D threaded model

3D Unthreaded model

3D threaded Bolt & contact status

3D Unthreaded Bolt & contact status

Bolt-Thread Modeling example:

Page 6: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 6

Mesh adaptivity example: 3D rubber sealing

To refine the mesh so that the gap can be filled

Page 7: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 7

And much more...

• Many new other improvements: • New CATIA V6 interface

• Defined shortcuts for common functions

• Worksheet summarizing the results

• Named selection based on elements number

• …

Page 8: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 8

ANSYS Fluid Dynamics Release 14.5 Overview

Sadek CHERHABILI

ANSYS France

ANSYS Conference & 10ème Forum CADFEM Lausanne, 11 Septembre 2013

Page 9: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 9

This presentation is an overview of the major improvements in ANSYS Fluid Dynamics at release 14.5

This presentation does not include

– Meshing technologies updates

– ANSYS Icepak updates

– ANSYS Polyflow updates

After the official release, please go to the ANSYS Customer Portal for the complete release 14.5 update

– New capabilities

– Release notes

– Migration manual

Important Note

Page 10: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 10

•Always better usability

•Integrated advanced meshing solutions

•Shape optimization innovations

•Better, faster, more robust simulations

•Advanced physics for specialized applications

•Turbo-Machinery specific solutions

•Internal combustion engines specific solutions

•Extended Multiphysics capabilities

ANSYS Fluid – Release 14.5 Highlights

Page 11: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 11

Key Benefits

When using TGrid, reduce the data transfer bottleneck thanks to TGrid’s meshing capabilities integrated into Fluent

– Import CAD directly into Fluent Meshing

– All TGrid and Fluent functionalities

– Serial meshing in parallel session Fluent

Target Applications

Current users of ANSYS TGrid

Very large meshes

Integrated Meshing in Fluent Environment

New Fluent (with TGrid meshing) component available in ‘Component Systems’ and added in ‘Project Schematic’

User interface of the Fluent Meshing Mode. (Displayed model depicts human stomach imported directly into Fluent in STL format).

Integrated Meshing (Fluent)

Page 12: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 12

ICEM CFD is now available in Workbench!

You can connect it and use it as ANSYS Meshing

Geometrical and meshing parameters are fully supported

14.5 ICEM CFD Workbench Integration

Better User-Experience (ICEM CFD)

Page 13: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 13

Use monitors to determine a solution convergence (replacing or complementing the residuals convergence criteria)

Define Your Own Convergence Criteria

Better User-Experience (Fluent)

Page 14: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 14

Faster process to create for ‘Quick Animations’

Improved file load speed for transient analysis

Supports changing geometry topology for post-processing of cases with moving/deforming walls (Particularly useful for IC engine simulations)

Post-processing of transient statistics from Transient Blade Rows simulations

Better Post-Processing With CFD-Post

Always Better Usability (CFD-Post)

Page 15: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 15

Use Fluent as a Server

Manage, control and steer remote Fluent sessions from Simplorer, Mathlab, Python, etc.

FLUENT Remote Console

00

0

VOC

Rseries

Ccapacity IBatt

CT_S CT_L

RT_S RT_L

RLoad

I2 R5

EQU

FML1

0.00 2000.00 4000.00 6000.00 8000.00 10000.00 12000.00 14000.00Time [s]

3.00

3.20

3.40

3.60

3.80

4.00

4.20

RL

oa

d.V

[V

]

Curve Info

RLoad.VTR

Discharging a battery circuit SIMPLORER / FLUENT co-simulation

0.00 2500.00 5000.00 7500.00 10000.00 12500.00 15000.00Time [s]

0.00

0.05

0.10

0.15

0.20

0.25

0.30

0.35

I2.I [A

]

Ansoft LLC Simplorer_pulse_discharge_320mAXY Plot 1 ANSOFT

Curve Info

I2.ITR

Better User-Experience (Fluent)

Page 16: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 16

Better Shape Optimization Capabilities

Better usability of the Mesh Morpher and Optimizer

⁻ Better controls for constraining the deformation to certain regions

⁻ Drive the Mesh Morpher and Optimizer (MMO) parameters from WB/DX

Better usability of the Adjoint Solver – Understand how select system inputs and

the geometry impact lift, drag, pressure drop from a single simulation

– Large case robustness (up to 300 million cells)

– Compound observables

– Adjoint specific post-processing

Mesh morpher and optimizer Target: uniform velocity at outlet

Before

After

Optimization (Fluent)

Page 17: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 17

Always Faster HPC Solutions

Continued scalability improvements

⁻ Esp. MPIs, DPM, Custom Field Functions

⁻ Interpolation file speed

⁻ Case file I/O speed-up

Progress in GPU technology

⁻ Support for UDFs, ray tracing , view factors

⁻ AMG linear solver on GPU (Beta)

F1 (140M cells) Case IO in seconds

#Proc Baseline Optimized

16 1413 1251

48 1115 948

96 1046 883

192 1266 1066

AMG Total

SP 352 558 74 4.76x 289 1.93x

DP 485 777 97 5.00x 417 1.86x

SP 71 100 86 0.83x 114 0.88x

DP 132 179 119 1.11x 166 1.08x

AMG Total

SP 1983 3168 394 5.03x 1582 2.00x

DP 2832 4593 517 5.48x 2263 2.03x

SP 496 653 454 1.09x 611 1.07x

DP 933 1221 630 1.48x 920 1.33x

CPU Intel(R) Xeon(R) CPU X5650 @ 2.67GHz, Westmere-EP, Dual hex-core

GPU Quadro 6000

FLUENT F-cycle, group size 8, smoother weight 0.9

NVAMG V-cycle, group size 8, smoother weight 0.9, determinism_flag=0

Serial

T12

Internal Flow Steady Computation

Internal Flow Unsteady Computation

Fluent NVAMG

AMG Total

Serial

T12

Fluent

AMG Total

NVAMG

High Performance Computing

Page 18: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 18

Improvements in Numerics

Continued work on improving robustness and efficiency

Improved accuracy for deforming meshes via 2nd order time discretization

Non-Reflecting Boundary Condition for the Pressure-Based Solver - Compatible with species transport and combustion models

Node-based gradients on polyhedral meshes for accuracy on mixed meshes

With non-reflecting boundary conditions

Without non-reflecting boundary conditions

Numerics (Fluent)

Page 19: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 19

New Physical Modeling Capabilities

Combustion

₋ Faster chemistry

₋ Super-equilibrium species (CO, NOx, …)

Radiation and Heat Transfer

₋ S2S and viewfactor speed-up

₋ Periodics with ray tracing

Turbulence and Acoustics: Focused development and R&D

₋ Transition, hybrid LES-RANS, WMLES

₋ Post-process acoustics data generated by 3rd parties with Fluent Ffowcs Williams-Hawkings acoustics solver

Physical Modeling (Fluent)

Page 20: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 20

New Multiphase Modeling Capabilities

Discrete particles modeling ₋ DPM accuracy, robustness and post-

processing improvements, including DEM

Eulerian Multiphase improvements ₋ Degassing boundary condition

₋ Boiling and gas-liquid enhancements

Eulerian Wall Film modeling extensions ₋ Adaptive time stepping

₋ Coupling with Mixture and Eulerian Multiphase models, including thermal

₋ Condensation-Vaporization of wall films

Free surface modeling extensions ₋ Maragoni effects via surface tension ext.

₋ Complete range of wave regimes in 14.5

₋ Multiple super-imposed waves

₋ Compressible liquids

Physical Modeling (Fluent)

Page 21: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 21

Continuation of innovation in the area of Transient Blade Row Models

– Additional Models: Time Transformation with (equilibrium) wet steam

– Profile visualization and rendering – Availability of transient statistics

Improvements in usability and capabilities in BladeModeler

– Design Comparison in BladeModeler – Camberline Theta mode with beta end angle

definition in BladeModeler

Use the native Vista CPD (Centrifugal Pump Design) native Worbench application for easier setup an and faster simulation process

Additional Transient Blade Row Models

Profile Visualization

Advanced Blade Row (CFX)

Page 22: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 22

Ability to perform blade flutter analysis with periodic displacement mesh motion boundary condition

Blade flutter can be applied to full wheel or you can use Fourier Transformation for reduced model size and hardware resources

Transient Blade Row – Blade Flutter

Advanced Blade Row (CFX)

Page 23: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 23

Workbench IC Engine System: Port-flow Simulation Support

WB IC Engine System Application

Now supported on Linux

Port-flow simulation support

– Automatic preparation of geometry for port flow analysis

– Automatic meshing

Improved solver & reporting

– Automatic solver setup from the best practices for cutcell and Hybrid meshing

– Automatic default swirl plane creation

– Default custom field functions for swirl with an ability to modify the definition

Input Manager for Port Flow

Final geometry with Inlet and Outlet Plenums, and port deactivated

Original Geometry

Page 24: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 24

One-way thermal coupling of Fluent and Mechanical via Systems Coupling via external data coupling

– External data can accept heat flow, temperature, near wall temperature and heat transfer coefficient data via an AXDT file

– AXDT file can be from the following sources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc.

One and two-way coupling between Fluent and Maxwell and HFSS

– Exterior surfaces and volumes

Key New Multiphysics Workflow Enabled

Multiphysics Capabilities

Maxwell Time Averaged Loss

Temperature

Energy Source

Fluent Temperature

Page 25: ANSYS Release 15.0 Structural Mechanics · PDF filesources: ANSYS Mechanical, ANSYS CFD-Post, Third party solvers, spreadsheets, etc. One and two-way coupling between Fluent and Maxwell

© 2013 ANSYS, Inc. October 7, 2013 25

Stabilization (“compressibility correction”) for 2-way FSI with systems coupling

– Improves the robustness for 2-way FSI simulations involving compressible flows

– Can be enabled for each dynamic zone

More Robust 2-way Fluid/Structure Interaction

Image courtesy of Tetra Pak

Multiphysics Capabilities


Recommended