The core activity of the AAM (Aerodynamic and Applied Methods) team is concentrated on developping aerodynamics numerical tools that are in used either in industry or in research laboratories. The close link with research laboratories allows to rapidly transfer advanced technologies to the industrial world. Most of the effort is dedicated to improve the multibloc structured solver called elsA. This solver is an ONERA project which aims to gather aerodynamics methods and algorithms in an Object Oriented framewok. Due to an official agreement with ONERA, CERFACS is involved in the elsA developement since 2001. This code is now daily used in an industrial environment such as Airbus and SNECMA, which implies that the majority of developments is now dedicated to increase the computing performances (this activity is described in Section 3.3 and Section 3.4).
Besides elsA, the CERFACS has the opportunity to work with numerous others solvers either on structured approach (in-house cartesian code: NTMIX) or unstructured ones (TrioU from CEA, Tau from DLR, AVBP from CERFACS). Such a diversity of tools enables to study different applications ranging from wake vortex to aerothermal simulation (work presented in Section 3.1).
During the past two years, CERFACS has started a new activity in the field of optimization (detailed in Section 3.2). The work done can be splitted in two main branches. Firstly, the construction of metamodel for A/C design and interdisciplinary data exchange has been developed making use of POD, Kriging and Neural Networks. Secondly, different optimization algorithms have been evaluated in order to build an efficient optimization loop.
All the works describe in the following sections have been done in collaboration with industrials such as Airbus and SNECMA and also research centers among which: ONERA, DLR (through MIRACLE), IRPHE, Paris VI and the university of Montpellier.
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v2-f turbulence model simulations (A. Celic)