In the field of aerodynamics and fluid dynamics modelling the
objectives of the Group are:
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The development of reliable,
efficient and accurate predictive CFD softwares for their use in
industrial environment,
- The numerical investigation of complex flow
physics making use of high-performance computing.
The Group develops physical models to study flow fields in and
around complex geometries. These models must be implemented in
efficient solvers to be tested and used. These models and CFD tools are to be eventually
used by both research laboratories and industrial users.
Formerly, CERFACS worked in an European consortium for the development of NSMB solver (Navier Stokes Multi Blocks).
Since 2000, the bulk of development work has switched to elsA. elsA (ensemble logiciel Aérodynamique) is an
ONERA project, to redesign Navier Stokes simulation methods and algorithm in an Object Oriented framework.
CERFACS and ONERA have signed in March 2001 an official agreement for the joint development of elsA.
The last two years have seen the completion of the switch
over process from NSMB to elsA both for development and applications.
Moreover, during the 2002-2003 timeframe, the elsA project has passed successfully two major milestones :
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Intensive optimisation of the code during the fall of 2002 led to the choice of elsA for the
common multi bloc structured code for trans european entities of Airbus.
- In the fall of 2003 elsA entered production for design studies at Airbus France.
The software is also distributed at other Airbus locations and CERFACS participated with ONERA
to the user and developper training sessions organized for DLR and other Airbus users.
In the near future the work with elsA will proceed in collaboration with ONERA and with
EADS and SNECMA. Lately, CERFACS has been invited by ONERA and DLR
to participate to their internal project on a common architecture platform.
CERFACS should take a part in the European integrated project OPERA
(Open CFD Alliance Enabler for Revolutionary Aerodynamics and Collaborative Design,
to be submitted in the second call of the 6th PCRD).
These two actions should ensure that in the future the operating CFD platforms at CERFACS
will be among the best in Europe and that the developments will be shared across a large user base.
During that period of transition and strengthening of the CFD platform, the applications and
modeling work went on with an emphasis on unsteady simulations: LES and
zonal approach of hybrid turbulence simulation, LES and wall laws for
thermal applications.
The Wake Vortex activities sustained a high rate of research and publications and have seen
the successful completion of two PhDs.
The Group works in collaboration with:
-
Industrials : Airbus - F, Airbus - D, SNECMA Moteurs and BAE Systems.
- Research : DLR (emerging through MIRACLE), UCL, IRPHE, IMFT, Paris VI (P. Sagaut) and Montpellier (B. Mohammadi/F. Nicoud).
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