Direct numerical simulation tests of eddy viscosity in two dimensions
نویسندگان
چکیده
منابع مشابه
Direct numerical simulation tests of eddy viscosity in two dimensions
Two-parametric eddy viscosity (TPEV) and other spectral characteristics of two-dimensional (2D) turbulence in the energy transfer sub-range are calculated from direct numerical simulation (DNS) with 5122 resolution. The DNS-based TPEV is compared with those calculated from the test field model (TFM) and from the renormalization group (RG) theory. Very good agree-
متن کاملFurther Numerical Tests of Ensemble Eddy Viscosity Methods
This supplementary material complements the report with similar title.
متن کاملHigh performance computation for direct numerical and large eddy simulation
This paper focusses on high order compact schemes for direct numerical simulation (dns) and large eddy simulation (les) for flow separation, transition, tip vortex, and flow control. We discuss the fundamental issues of high quality grid generation, high order schemes for curvilinear coordinates, the cfl condition for complex geometry, and high-order weighted compact schemes for shock capturing...
متن کاملDirect numerical simulations of two-layer viscosity-stratified flow
Two-dimensional simulations of flow instability at the interface of a two-layer, density-matched, viscosity-stratified Poiseuille flow are performed using a front-tracking/finite difference method. We present results for the small-amplitude (linear) growth rate of the instability at small to medium Reynolds number for varying thickness ratio n, viscosity ratio m, and wavenumber. We also present...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Fluids
سال: 1994
ISSN: 1070-6631,1089-7666
DOI: 10.1063/1.868437