Multi-Physics & Analysis
Computational Modelling of Multiphysics Processes
Workshop Description
The objective of this workshop is to focus upon the status of
multiphysics simulation technology and what comprises its
challenges. It will cover:
• Overview of challenges of multi-physics
- Contemporary applications
- Levels of coupling
- Survey of commercial CAE analysis technologies
- Discussion of benchmarks
• Multi-physics case-studies – formulation and routes to
solution
• Road-map for the future - key problems:
- Characterization of problems
- Physics vs. Levels of coupling
- Software capabilities – gaps and limitations
Presentations
XML/STEP/OMG Technologies to Facilitate Generic Coupling of
Different Analysis Codes
C. Armstrong, QUB, U.K.
- 100’s commercial codes available (FEA, FV, BEM, DEM)
- STEP AP209 specification – carefully planned
- Describes structures, fields, changes of state
- PDM enabled and feedback to design compliant
- Lightweight Specification for interoperable EA enterprise
applications
- May be combined with an OMG equivalent specification for CAE
services
Computational Modelling of Multi-physics Processes: Case studies
The workshop challenges.
Three issues to address:
- to consider how you would formulate a model to simulate the process
from scratch without the constraints of existing computational
modelling software technologies
- simplify the formulation to address the problem from one or more
perspectives with existing commercial software software
technologies that group members are familiar with
- evaluate what software technology would need to be developed so
that the problem can be addressed comprehensively
Multiphysics Simulation & Integration - Applications to Casting
Analysis
M.Chiumenti, CIMNE, Spain
- Multi-physics Analysis
- filling analysis
- solidification analysis
- solution strategy
- Casting Analysis
- FIAT console
- SEAT break part
Overview of the challenges of MULTI-PHYSICS
Mark Cross, Avril Slone, Centre for Numerical Modelling and Process
Analysis, University of Greenwich, London, U.K. - Eugenio Onate,
Pere-Andreu Ubach, CIMNE, UPC, Barcelona, Spain
Most CAE analysis software tools based upon single discipline:
- CFD (fluid flow, heat transfer, combustion)
- CSM (structures, dynamics, contact, heat transfer)
- CEM (electro-magnetics)
- Acoustics
What of their interactions?
- - mostly we cheat or ignore them
Challenges of Multi-Physics Coupling in a Commercial FE Code
David Ellis, Idac Ltd, London, U.K
This presentation will illustrate the capabilities of the
ANSYS® program for solving Multiphysics Coupled Field solutions
and describe the challenges faced in solving these problems as well
as offering some advice in tackling these challenging physics
simulations.
Applications on Fluid-Structure interaction
Arnau Folch, Centro Internacional Métodos Numéricos
en Ingeniería (CIMNE), Spain
1. Overview of multiphysics
- Computational Strategies
- Monolithic vs. partitioned schemmes. Who wins the match ?
2. Fluid-Structure interaction
- General problem
- Solution Strategies for partitioned schemmes
- ALE formulation
3. Applications
- Aerodynamic coefficients of a large span suspended bridge
- Launching of a missile
- Caldera-forming volcanic eruptions
LIMITATIONS OF THE FINITE ELEMENT MODELLING OF TRAUMATIC INJURY
Mike Neale, Biomechanics and Injury Prevention Group, TRL Limited,
U.K.
- Brief background to TRL Limited
- Detail limitations of modelling human biological system
- Multi-physics modelling problems
FREE SURFACE AND MEMBRANE-FLUID APPLICATIONS
Pere-Andreu Ubach, Eugenio Oñate CIMNE
Acknowledgments: Dr. Julio Garcia COMPASS IS, Lara Pellegrini
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