Inria
Inria Channel
Séminaire des équipes de recherche
Grid Adaption to Improve Engineering Outputs of Reynolds-Averaged Navier-Stokes Simulations
Inria Paris-Rocquencourt, amphithéâtre A. Turing, bâtiment 1.
A 14h, entrée libre.
- Date : 17/05/2011
- Lieu : Amphi A. Turing, Bat 1, Inria Paris-Rocquencourt
- Intervenants : Mike Park, Computational AeroSciences Branch, NASA Langley Research Center
- Organisateurs : Irene Vignon-Clementel
Controlling discretization error is a challenge in numerical simulation. This difference between the solution to the original continuous partial differential equation and its discrete representation is a product of many factors including the grid. Grid adaptation is specified by an anisotropic metric and local modifications are applied to reduce the errors induced by the grid. Not all errors in the domain impact the outputs of engineering interest equally. The adjoint solution is employed to determine the transport and relative importance of local error sources to focus adaptation on improving the calculation of a specific output or goal. Grid adapted examples from recent workshops include turbulent Reynolds-averaged Navier-Stokes simulations of shock boundary layer interaction and a three dimensional high lift system. A large simulation framework is required to perform these simulations on high performance computing resources. A brief description of the NASA FUN3D simulation framework and its software development practices will also be presented.
Mots-clés : Séminaire Paris - Rocquencourt Modélisation et Calcul Scientifique
