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EPVS-FMDF for LES of High-Speed Turbulent Flows

机译:EPVS-FMDF用于高速湍流LES

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Work is in progress towards development of the "energy-pressure-velocity-scalar filtered mass density function" (EPVS-FMDF) as a new subgrid scale (SGS) model for large eddy simulation (LES) of high-speed turbulent flows. This is an extension of the previously developed "velocity-scalar filtered mass density function" method in low-speed flows. In EPVS-FMDF, the effects of compressibility are taken into account by including two additional thermodynamic variables: the pressure and the internal energy. The EPVS-FMDF is obtained by solving its transport equation, in which the effect of convection appears in a closed form. The modeled EPVS-FMDF is employed for LES of a temporally developing mixing layer.
机译:正在开发“能量-压力-速度-标量过滤的质量密度函数”(EPVS-FMDF),作为用于高速湍流的大涡模拟(LES)的新的子网格比例(SGS)模型。这是先前开发的低速流中“速度-标量滤波质量密度函数”方法的扩展。在EPVS-FMDF中,通过包括两个附加的热力学变量来考虑可压缩性的影响:压力和内部能量。 EPVS-FMDF是通过求解其输运方程获得的,其中对流效应以闭合形式出现。建模的EPVS-FMDF用于暂时发育的混合层的LES。

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