• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

圧縮性乱流モデルの研究

Research Project

Project/Area Number 05240105
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionThe University of Tokyo

Principal Investigator

吉澤 徴  東京大学, 生産技術研究所, 教授 (60011649)

Co-Investigator(Kenkyū-buntansha) 長谷川 達也  名古屋工業大学, 工学部, 助教授 (40164818)
麻生 茂  九州大学, 工学部, 助教授 (40150495)
荒川 忠一  東京大学, 工学部, 助教授 (30134472)
中村 佳朗  名古屋大学, 工学部, 教授 (80115609)
木田 重雄  東京大学, 核融合科学研究所, 教授 (70093234)
Project Period (FY) 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥63,200,000 (Direct Cost: ¥63,200,000)
Fiscal Year 1995: ¥18,000,000 (Direct Cost: ¥18,000,000)
Fiscal Year 1994: ¥15,500,000 (Direct Cost: ¥15,500,000)
Fiscal Year 1993: ¥29,700,000 (Direct Cost: ¥29,700,000)
Keywords圧縮性乱流 / 乱流モデル / 衝撃波 / 乱流遷移 / 燃焼波 / RNG代数モデル / 熱対流ダイナモ / 非平衡渦粘性 / 電磁流体ダイナモ
Research Abstract

課題1:圧縮性乱流の統計理論とモデリングの研究(担当 吉澤 徴)
衝撃波と乱流の干渉における密度揺動の重要性に着目し、密度分散を変数とする乱流モデルを2スケール統計理論を用いて導出し、計算機実験でその有効性を確認した。
課題2:圧縮性乱流のエネルギー力学と乱流構造の研究(担当 木田 重雄)
外力で駆動される一様乱流の数値実験を行い、衝撃波と渦運動の相互作用を考察し、圧縮性が卓越した乱流における渦生成機構を明らかにした。
課題3:層流から乱流への遷移を含む低次圧縮性乱流モデルの開発(担当 中村 佳朗)
圧縮性ジェットの数値実験を行い、渦論の形成に伴う3次元的崩壊機構を明らかにし、乱流モデルへの同効果の組み込みを検討した。
課題4:圧縮性乱流の直接数値計算と乱流モデリング(担当 荒川 忠一)
典型的圧縮性乱流である超音速混合層での拡大率抑制効果を調べるために、一様せん断乱流の数値実験を行い、同機構の乱流モデルへの組み込みを行なった。
課題5:衝撃波-境界層干渉場の非平衡乱流モデルの研究(担当 麻生 茂)
突起物により誘起される衝撃波と乱流干渉を実験的に調べ、その構造を明らかにし、乱流モデル構築のためのデータベースを整備した。
課題6:衝撃波、燃焼波を伴う圧縮性乱流の構造解明とモデリング(担当 長谷川 達也)
乱流予混合火炎と渦管の相互作用を数値実験により調べ、火炎伝播速度と渦運動との関係を明らかにし、そのモデリングを提案した。

Report

(3 results)
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] A.Yoshizawa: "Simplified statistical approach to complex turbulent flows and ensemble-mean compressible turbulence modeling" Physics of Fluids. 7. 3105-3117 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] A.Yoshizawa: "Compressibility and rotation effects on turbulent suppression in magnetohydrydynamic turbulence" Physics of Plasmas. 3. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Miura: "Acoustic energy exchange in compressible turbulence" Physics of Fluids. 7. 1732-1742 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Y.Nakamura: "Growth of three-dimensional disturbance in compressible jet" Proc. of Intern. Symp. on Mathematical Modeling of Turbulent Flows. 19-24 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 藤原,仁志: "圧縮性乱流のモデリングに関する研究" 日本機械学会論文集(B). 61. 65-70 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] A.Aso: "The effects of nonequilibrium chemical reactions on aerodynamic heating phenomena in shock wave reflections" 6th Int. Symp. on Comptutational Fluid Dynamics. 23-28 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Hasegawa: "Flow propagation along a fine vortex tube" Combustion and Technology. 108. 67-80 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] A.Yoshizawa: "Nonequilibrium effect of the turbulent-energy-production process on the inertial-range energy spectrum" Physical Review E. 49. 4065-4071 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Yoshizawa: "Statistical theoretical turbulence modeling in hydrodynamic flows" Current Topics in the Physics of Fluids. (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Miura: "Vorticity generation by shock-vorticity interaction" Journal of Physical Society of Japan. 36. 4000-4010 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 三浦 英昭: "一様乱流における振動的エネルギー交換" 第8回数値流体力学シンポジウム講演論文集. 8. 399-402 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 荒川 忠一: "擬似圧縮性解法によるフランシス水車ランナの乱流数値解析" 日本機械学会論文集(B). 60. 1661-1668 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 藤原 仁志: "圧縮性乱流のモデリングに関する研究" 第26回乱流シンポジウム講演論文集. 26. 33-40 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.E.Sakya: "An application of the RNG based algebraic turbulence model to aerodynamical characteristics" Transactions of the Japan Society for Aeronautical and Space Sciences. 37. 43-55 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] I.Nakamori: "An upwind scheme on the flux-vector splitting method" AIAA Paper. 95-0471. 1-7 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Yoshizawa: "Turbulent magnnetohydrodynamic dynamo for accretion disks using the cross-helicity effect" The Astrophysical Journal. 407. 540-548 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Yoshizawa: "Bridging between eddy-viscosity-type and second-order models through a two-scale turbulence theory" Physical Review E. 48. 273-281 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Yoshizawa: "A nonequilibrium representation of the turbulent viscosity based on a tqo-scale turbulence theory" Physics of Fluids A. 5. 3302-3304 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Kishiba: "Physical-space nonlocality in a decaying isotropic turbulence" Journal of Physical Society of Japan. 62. 3783-3787 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.K.Moffatt: "Streched Vortices-the Sinews of turbulence; high Reynolds number asymptotics" Journal of Fluid Mechanics. 259. 241-264 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Nakamura: "Capturing of transition by the RNG based algebraic turbulence model" International Journal of Computer & Fluids. (掲載予定). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.E.Sakya: "An application of the RNG based algebraic turbulence model to aerodynamic characteristics" Transaction of Japan Society of Aeronautics and Space Science. (掲載予定). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 長谷川 達也: "高強度二次元乱流と予混合火炎の干渉" 燃焼の科学と技術. (掲載予定). (1994)

    • Related Report
      1993 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi