Large Eddy Simulation of a Turbulent Channel Flow with a Periodic Pressure Gradient

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概要

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• A turbulent flow in a two-dimensional channel with fluid injection from one wall has been numerically simulated by large eddy simulation (LES). The Reynolds number based on the channel width and bulk velocity is 4900. The total grid number used in the calculation is about 1.23 million, which allowed a highly resolved turbulent flow simulation. In the flow field, events of production, redistribution and dissipation of turbulent energy are observed in streamwisely separated locations. Therefore the LES data are instrumental in understanding the turbulence structure as well as in investigating turbulence models. The present result shows that the pressure-strain terms in Reynolds stress equations are related to the streamwise vortices with intensified pressure fluctuation, rather than to the direct isotropization.

• 一般社団法人日本機械学会の論文
• 1992-02-15

著者

• Miyake Yutaka

  Dept. Of Mech. Engng. Osaka University

• Kajishima Takeo

  National Institute For Resources And Environment Aist

• Miyake Yutaka

  Dept. Of Mechanical Engineering Osaka University

• Miyake Yutaka

  Dept. Of Mech. Eng. Osaka University

関連論文

• Direct Numerical Simulation of Plane Couette Flow at a Transitional Reynolds Number : Fluids Engineering
• Boundary Element Method on the Basis of Oseen's Fundamental Solution
• A Solution to Inverse Problem of Quasi Three-dimensional Flow in Centrifugal Impeller
• Numerical Simulation of the Effects of Coriolis Force on the Structure of Turbulence : 2nd Report, Structure of Turbulence
• Numerical Simulation of the Effects of Coriolis Force on the Structure of Turbulence : 1st Report, Global Effect
• Large Eddy Simulation of a Turbulent Channel Flow with a Periodic Pressure Gradient

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