A second order cartesian scheme for BGK equation
BERNARD, Florian
Politecnico di Torino = Polytechnic of Turin [Polito]
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]
Politecnico di Torino = Polytechnic of Turin [Polito]
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]
PUPPO, Gabriella
Universitá degli Studi dell’Insubria = University of Insubria [Varese] [Uninsubria]
Universitá degli Studi dell’Insubria = University of Insubria [Varese] [Uninsubria]
BERNARD, Florian
Politecnico di Torino = Polytechnic of Turin [Polito]
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]
Politecnico di Torino = Polytechnic of Turin [Polito]
Institut de Mathématiques de Bordeaux [IMB]
Modélisation, contrôle et calcul [MC2]
PUPPO, Gabriella
Universitá degli Studi dell’Insubria = University of Insubria [Varese] [Uninsubria]
< Leer menos
Universitá degli Studi dell’Insubria = University of Insubria [Varese] [Uninsubria]
Idioma
en
Communication dans un congrès
Este ítem está publicado en
2nd ECCOMAS Young Investigators Conference (YIC 2013), 2013-09-02, Bordeaux.
Resumen en inglés
A simple second order scheme is presented for BGK equation on cartesian grids to simulate rarefied gas flows. An immersed boundary technique is then used since the mesh is body fitted. The asymptotic preserving properties of ...Leer más >
A simple second order scheme is presented for BGK equation on cartesian grids to simulate rarefied gas flows. An immersed boundary technique is then used since the mesh is body fitted. The asymptotic preserving properties of the BGK equation discretization towards Euler limit are also investigated with emphasis on the boundary conditions as the Knudsen number goes to zero. Reconstruction techniques and levelset functions are used to modify the fluxes at the nearest interface of the body and enforce the boundary conditions at second order. The same method is applied in 1D and 2D cases to demonstrate its accuracy< Leer menos
Palabras clave en inglés
BGK model
cartesian meshes
second order
Orígen
Importado de HalCentros de investigación