نتایج جستجو برای: low mach number model
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Turbulent separated flows around an airship-like geometry (a prolate spheroid 6:1) are investigated using three turbulence modelings based on statistical and Large Eddy Simulation (LES) approaches. The turbulence models used in the simulations are a standard high Reynolds k–ε model, a Smagorinsky LES model and a variational multiscale LES one. The flow of interest is characterized by a relative...
Introduction We describe recent developments in the design and implementation of nite element methods for the Navier-Stokes equations modelling chemically reactive ows. The emphasize is on the low-Mach number regime including the limit case of incompressible ow. The most important ingredients are residual driven a posteriori mesh reenement, fully coupled defect-correction iteration for lineariz...
We propose a low Mach number, Godunov-type finite volume scheme for the numerical solution of the compressible Euler equations of gas dynamics. The scheme combines Klein’s non-stiff/stiff decomposition of the fluxes (J. Comput. Phys. 121:213-237, 1995) with an explicit/implicit time discretization (Cordier et al., J. Comput. Phys. 231:56855704, 2012) for the split fluxes. This results in a scal...
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