乱流促進体をもつ二次元チャンネル内の乱流予測に関する研究 : 第1報、Large Eddy Simulation による数値予測

• 狩野正徳

  東京大学生産技術研究所

• 小林 敏雄

  東京大学生産技術研究所

• 石原 智男

  東京大学生産技術研究所

書誌事項

タイトル別名

• Prediction of Turbulent Flow in Two-Dimensional Channel with Turbulence Promoters : 1st Report, Numerical Prediction by Large Eddy Simulation

抄録

Fully developed incompressible turbulent flow in two-dimensional channel has been simulated numerically. Turbulence promoters were arranged periodically on one side of channel walls. Two walls and promoters were heated individually. The large-scale flow field and temperature field have been calculated by integrating the filtered, three-dimensional time-dependent Navier-Stokes equations and time-dependent energy equation. Motions of the turbulence field with small scales were simulated through eddy-viscosity models. The Reynolds and Peclet numbers were set at 1.1×10^4 and 7.7×10^3, respectively. Only 9,000 grid points were distributed and three kinds of averaging were used in order to complement the grid points. Mean-velocity profiles, turbulence statistics, time-dependent features of flow and mean-temperature profiles were obtained. The wall temperature profiles are in good agreement with the experimental data. Calculations were carried out on the HITAC M 200/280 H system computer of University of Tokyo.

収録刊行物

• 機論, B

  機論, B 50 (449), 257-264, 1984

  一般社団法人日本機械学会

キーワード

• Turbulence
• Numerical Prediction
• Large Eddy Simulation
• Channel Flow
• Turbulence Promoter
• Mean Velocity
• Shear Stress
• Thrbulence Statistics
• Large Scale Field
• Eddy Viscosity Model

詳細情報

• CRID: 1574231876850233728
• NII論文ID: 110002399153
• NII書誌ID: AN00187441
• ISSN: 03875016
• 本文言語コード: ja
• データソース種別:
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