A STUDY OF KINETIC ENERGY CONSERVING SCHEME USING FINITE VOLUME COLLOCATED GRID FOR LARGE EDDY SIMULATIONS OF A CHANNEL FLOW

机译：通道流动大涡模拟的有限体积拼接网格动力学节能方案研究

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The objective of this study is to test a numerical method for the solution of the Navier Stokes equations using the LES approach in collocated grid. In uniform meshes, the convection term of kinetic energy equation is conservative in the discrete sense, but in the inviscid limit kinetic energy is dissipated due to the Rhie and Chow interpolation scheme. A 3D turbulent channel flow at Reynolds number (based on friction velocity) Re_τ = 970 is simulated using the Smagorinsky model with Van-Driest damping function. Good agreement is obtained comparing with the spectral results. A dynamic model based on Taylor-series approximation with test filtering is also tested and reasonable results are obtained.

机译：这项研究的目的是测试使用LES方法在并置网格中求解Navier Stokes方程的数值方法。在均匀网格中，动能方程的对流项在离散意义上是保守的，但在无形极限下，由于Rhie和Chow插值方案而耗散了动能。使用具有Van-Driest阻尼功能的Smagorinsky模型，模拟了雷诺数（基于摩擦速度）Re_τ= 970的3D湍流通道。与光谱结果相比，获得了良好的一致性。还测试了基于泰勒级数逼近和测试滤波的动态模型，并获得了合理的结果。

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来源
《International Conference on Fluid Mechanics; 20040720-30; Dalian(CN)》|2004年|P.731-734|共4页
会议地点 Dalian(CN)
作者
C. Liang; G. Papadakis;
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作者单位

Department of Mechanical Engineering, King's College London, London, WC2R 2LS. UK;

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会议组织
原文格式 PDF
正文语种 eng
中图分类流体力学;
关键词
large eddy simulation; collocated grids; Smagorinsky model; dynamic model without test filtering; kinetic energy conservation;

机译：大涡模拟;并置网格; Smagorinsky模型;无测试滤波的动态模型;动能守恒;

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A STUDY OF KINETIC ENERGY CONSERVING SCHEME USING FINITE VOLUME COLLOCATED GRID FOR LARGE EDDY SIMULATIONS OF A CHANNEL FLOW

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