Multi Physics & Analysis

Computational Modelling: the challenge of MULTI-PHYSICS analysis
Xavi Royo †, Pere-Andreu Ubach+, Pooyan Dadvand Eugenio Oñate
+CIMNE (International Center for Numerical Methods in Engineering) Barcelona, SPAIN
Mark Cross*, Avril Slone, Chris Bailey, Nick Croft, Kevin McManus, Koulis Pericleous and Alison Williams *University of Greenwich, London, UK

What is multi-physics simulation?
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

Overview of computational multiphysics / Challenges in Pre/Post Processing / Applications

The Future: Web Computing / Conclusions

Needs of Integrated Design and Analysis of Space Vehicles
W. Kordulla, ESA/ESTEC, Noordwijk, The Netherlands
Introduction / Background of space activities / Typical disciplines involved in design and analysis / Physical modeling and technology gaps in disciplines / Integrated design and analysis

The role of standards in multi-physics and analysis
David Leal, CAESAR Systems Limited, London, UK
The paper describes the current status of STEP (ISO 10303). The developments of STEP to address multi-physics and analysis, especially the Engineering Analysis Core Model, are highlighted.

Multiphysics needs in the naval marine industry
John D McVee & Dr A P Steer, QinetiQ Rosyth, Centre for Marine Technology, Dunfermline, United Kingdom
An overview is given of possible multiphysics applications with reference to current QinetiQ research including that aimed at validated design and analysis capability for Trimaran warships. Examples are given of current capability with regard to the fluid structure interaction arising from underwater explosions and the hydroelasticity of ships in seaways.

Dimensional Addition and FE Idealisation in the Design of Aerospace Structures
RW McCunne, KW Shim, CG Armstrong, H Ou and MA Price, Finite Element Modelling Group, Queen‘s University, Belfast, Northern Ireland, UK
Dimensional addition to generate 3D designs from simple schematic models for detailed analysis and optimization / Mixed dimensional coupling to enable structural analysis undertaken at the most appropriate level / Multi-disciplinary modelling and simulation

Computational Modelling of Manufacturing Processes
Avril Slone*, Chris Bailey, Nick Croft, Mark Cross, Kevin McManus, Koulis Pericleous and Alison Williams, *University of Greenwich, London, UK

Key manufacturing processes Forming processes - forging, stamping, extrusion : all in the solid(ish) state but involve / significant contact analysis and very large / deformation Solidification/melting phase change based processes : shape casting, plastics moulding, composite manufacture, welding

Key interactions : fluid flow - NS , transient, compressible, turbulent, multi-phase solid mechanics - non-linear,elasto-visco-plastic,dynamic,contact heat transfer - phase change, combustion, reactions electro-magnetics - MHD, AC/DC