A priori tests of eddy viscosity models in square duct flow
نویسندگان
چکیده
منابع مشابه
effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولDirect 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 کاملCharacterisation of Marginally Turbulent Square Duct Flow
We have performed direct numerical simulation of fully developed turbulent flow in a straight duct with square cross-section. The main objective of the present study is to determine the minimal requirements for maintaining turbulence in duct flows [1]. A detailed analysis of this limit regime allows to elucidate the dominant mechanisms governing the marginally turbulent state, where the self-su...
متن کاملHeat transfer in MHD square duct flow of nanofluid with discrete heat sources
The effect of thermal and solutal buoyancy induced by a discrete source of heat and mass transfer in a square duct under the influence of magnetic field, especially at the turbulent regime for the first time is reported. Al2O3/water nanofluid is used with constant heat flux from three discrete heat sources. In the present study, the effects of Reynolds number (100 to 3000), particle volume frac...
متن کاملFurther Numerical Tests of Ensemble Eddy Viscosity Methods
This supplementary material complements the report with similar title.
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ژورنال
عنوان ژورنال: Theoretical and Computational Fluid Dynamics
سال: 2020
ISSN: 0935-4964,1432-2250
DOI: 10.1007/s00162-020-00545-9