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Proposition of Engineering Turbulence Modeling for Direct Numerical Simulation of Compressible Flow

Research Project

Project/Area Number 05240206
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionUNIVERSITY OF TOKYO

Principal Investigator

ARAKAWA Chuichi  UNIVERSITY OF TOKYO,Faculty of Engineering, ASSOCIATE PROFESSOR, 工学部, 助教授 (30134472)

Project Period (FY) 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1993: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywordsturbulence / comnpressible flow / turbulence model / shock wave / direct numerical simulation / k-epsilon turbulence model / three-equation turbulence model / K-εモデル
Research Abstract

High-speed flows in aerospace phenomena, which often accompany large changes of fluid density, are of very high Reynolds numbers and are beyond the scope of the direct numerical simulation of the primitive fluid dynamical equations. As a results, some kind of turbulence model accounting for compressibility effects is indispensable for supplementing the process of energy disspation.
In this study, the direct numerical simulation was performed to increase our understanding of compressible turbulence and to aid the development of turbulence models. The simulation results showed that the conventional two-equation turbulence models cannot predict the compressibility effects precisely. To overcome this deficiency, there-equation model was proposed by the authors, which shows good agreements with the direct simulation data of compressible turbulence. The proposed model was also applied to the isotropic turbulence interacting with a normal shock wave, providing good predictions of the compressibility effects on tubulence.

Report

(2 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] Fujiwara,H.: "Direct Numerical Simulation and Modeling of Compressible Turbulence" Proc.9th Symp. Turbulent Shear Flows. 22.2.1-22.2.6 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 藤原仁志: "圧縮性一様等方性乱流の直接数値計算とモデルの提案" 日本機械学会論文集(B編). 59-559. 72-77 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 藤原仁志: "衝撃波通過時の乱流の変化を考慮した圧縮性乱流のモデリングに関する研究" 第7回数値流体力学シンポジウム講演論文集. 355-358 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Fujiwara, H.: "Direct Numerical Simulation and Modeling of Compressible Turbulence" Proc.9th Symp.Turbulent Shear Flows. 22.2.1-22.2.6 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Fujiwara, H.: "Direct Numerical Simulation and Modeling of Compressible Isotropic Turbulence" Transactions of the Japan Society of Mechanical Engineers. Vol.59, No.559. 72-77 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Fujiwara, H.: "A turbulence model for compressible flows accounting for the modification of turbulence by shock turbulence interaction" Proc.7th Symp.Numerical fluid mechanics.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 355-358 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Fujiwara,H.: "Direct Numerical Simulation and Modeling of Compressible Turbulence" Proc.9th Symp.Turbulent Shear Flows. 22.2.1-22.2.6 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 藤原仁志: "圧縮性一様等方性乱流の直接数値計算とモデルの提案" 日本機械学会論文集(B編). 59-559. 72 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 藤原仁志: "衝撃波通過時の乱流の変化を考慮した圧縮性乱流のモデリングに関する研究" 第7回数値流体力学シンポジウム講演論文集. 355-358 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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