Computational Fluid Dynamics and Aeroacoustics
Cocomat - Coupling mechanical and aerothermal codes
Presentation
The understanding of the multi-physics complexity of certain phenomena is a big challenge for researchers and industry. Moreover, they increasingly have recourse to digital modeling and computing tools to analyse these phenomena.
The approach which seems the most promising is coupling calculation codes which means that tried and tested computing tools can be made to communicate for processing the different fields of physics and so avoid having to develop a new comprehensive software which would be complex and costly to maintain. Code coupling takes direct advantage of existing software, while complying with their architecture and organization. Furthermore it brings together various disciplines.
Code coupling is a dynamic platform. The codes are input to or output from the platform, depending on the multi-physics application which is to be processed and there is no restriction on the number of interacting codes.
Onera has brought research teams of different disciplines together in a cross-disciplinary project, Cocomat, to work on this with the aim of developing and implementing procedures and methods for coupling calculation codes (or software) for the production of multi-physics digital simulations, mainly aero-thermal, aero-mechanical and aero-thermo-mechanical. Objective: to develop reliable coupling algorithms and build a quality software infrastructure, and also to expose the research teams to inter-disciplinary approaches.
Three Onera calculation codes have been selected for this project. They are:
- CEDRE: fluid mechanics software
- ZeBuLoN: solid mechanical software
- ASTRE: radiation software
An "experimental validation" aspect is also part of the project:
- Use of the aero-thermal test bench of the UTAP laboratory at the University of Reims
- Use of the existing test benches of the DMAE at Onera-Toulouse
