Segregated LES/RANS coupling conditions for the simulation of complex turbulent flows
D.A. Von Terzi (Karlsruhe Institut für Technologie)
Ivan Mary (Office National d'Etudes et de Recherches Aerospatiales)
J. Fröhlich (Technische Universität Dresden)
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Abstract
The paper presents hybrid LES/RANS computations of turbulent flows with a segregated approach. This approach employs strict steady RANS and strict LES in pre-defined regions of the computational domain coupling the solution between them by specifically designed interfaces. The latter can be obtained by enhancement of the interfaces needed for domain decomposition in any block structured code. The paper covers inflow and outflow conditions of the LES subdomain when linked to a RANS domain as well as tangential coupling. Compressible as well as incompressible simulations are reported.
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