Prediction of Turbulent Flow in Two-Dimensional Channel with Turbulence Promoters : 2nd Report, Numerical Prediction by k-εModel and Comparison with Experimental Results

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概要

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• Fully developed incompressible turbulent flow in a two-dimensional channel with turbulence promoters has been simulated numerically. A k-ε model, which consists of two model transport equations for turbulence energy and energy dissipation rate besides the mean velocity equation, is applied. The Reynolds number is set at 1.1×10^4 and only 4000 grid points are distributed. A detailed comparison between the calculated results by k-ε model and large eddy simulation is made. The distributions of mean velocities, turbulence energies and turbulence shear stresses by both methods are in good agreement near the upper wall without turbulence promoter, but quite different behind the turbulence promoters. The calculated results are also compared with the experimental results. The large eddy simulation method can describe these flow fields well. Calculations were carried out on the HITAC M 200/280H system computer of University of Tokyo.

• 一般社団法人日本機械学会の論文

著者

• Kano Masanori

  Univ. Of Tokyo

• Saga Tetsuo

  Inst. Of Indust. Sci. Univ. Of Tokyo

• KOBAYASHI Toshio

  Inst. of Indust. Sei., Univ. of Tokyo

• ISHIHATA Tomo-o

  Inst. of Indust. Sci., Univ. of Tokyo

• Ishihata Tomo-o

  Inst. Of Indust. Sci. Univ. Of Tokyo

• Kobayashi Toshio

  Inst. Of Indust. Sci. Univ. Of Tokyo

関連論文

• Numerical Prediction of Effects of Perforated Plates in Conical Diffusers : 1st Report, Numerical Simulation by κ-ε Model and Estimation of Effects of Perforated Plates
• Prediction of Turbulent Flow in Two-Dimensional Channel with Turbulence Promoters : 2nd Report, Numerical Prediction by k-εModel and Comparison with Experimental Results
• Prediction of Turbulent Flow in Two-Dimensional Channel with Turbulence Promoters : 3rd Report, Improvement of Large Eddy Simulation and Formation of Streaklines

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