A comparison of subgrid-scale models for large-eddy simulations of convection in the Earth's core
نویسندگان
چکیده
منابع مشابه
Subgrid-scale modeling for Large-eddy simulations of compressible turbulence
We present two phenonmenological subgrid-scale (SGS) models for large-eddy simulations (LES) of compressible turbulent flows. A nonlinear model and a stretched-vortex model are tested in LES of compressible decaying isotropic turbulence. Results of LES at 32 resolution are compared to corresponding 256 direct numerical simulations (DNS). We use numerical schemes based on compact differences and...
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چکیده ندارد.
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Recently, the -expansion and recursive renormalization group (RNG) theories as well as approximation inertial manifolds (AIM) have been exploited as means of systematically modeling subgrid scales in large-eddy simulations (LES). Although these theoretical approaches are rather complicated mathematically, their key approximations can be investigated using direct numerical simulations (DNS). In ...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2003
ISSN: 0956-540X,1365-246X
DOI: 10.1046/j.1365-246x.2003.01930.x