Numerical Simulation of the Effects of Coriolis Force on the Structure of Turbulence : 2nd Report, Structure of Turbulence

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概要

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• Characteristics of the structure of a turbulent flow in a rotating channel have been investigated numerically using Large-eddy Simulation (LES). The authors previous paper reported successful prediction of the global effect of Coriolis force by simulation. In this paper, attention is focused on the behaviour of large scale eddies and the mechanism of production of turbulence under the action of Coriolis force is discussed. LES is confirmed to be useful to get experimentally. It is suggested that, in the Coriolis force field, the so-called sweep and ejection, which make a positive contribution to the production of Reynolds stress and turbulent energy, are intensified on the pressure side. Contrarily, on the stabilized side, the streak structure, which is closely associated with the production of turbulence, is observed to disappear.

• 一般社団法人日本機械学会の論文

著者

• Miyake Yutaka

  Dept. Of Mech. Engng. Osaka University

• Kajishima Takeo

  Graduate School Of Osaka University

• Miyake Yutaka

  Dept. Of Mech. Eng. Osaka University

関連論文

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• Boundary Element Method on the Basis of Oseen's Fundamental Solution
• A Solution to Inverse Problem of Quasi Three-dimensional Flow in Centrifugal Impeller
• A Study on the Structure of Turbulent Shear Flow by Numerical Simulation
• 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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