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

STUDY OF TURBULENT TRANSITION MECHNAISM IN COMPRESSIBLE FLOWS AND PREDICTION OF TRANSITION

Research Project

Project/Area Number 10650163
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionThe University of Electro-Communications

Principal Investigator

MAEKAWA Hroshi  AT DEPT. F MECHANICAL ENGINEERING AND INTELIGNET SYSTEMS IN UNIVERSITY OF ELECTRO-COMMUNICATIONS, ASSOCIATE PROFESSOR, 電気通信学部, 助教授 (90145459)

Co-Investigator(Kenkyū-buntansha) 前川 博  電気通信大学, 電気通信学部, 助教授 (90145459)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1999: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1998: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywordscompressible flow / Transition to turbulence / Free shear flow / Boundary layer / Direct Numerical Simulation / Linear stability theory / Critical point theory / Singular point / 安定性理論 / 境界層 / Poiseuille流れ / 不変量発展方程式 / 遷移
Research Abstract

The three-dimensional time-dependent compressible Navier-Stokes equations and a linear stability theory are numerically solved to study plane Poiseuille flows, supersonic boundary layers and supersonic wakes. Navier-Stokes Characteristic Boundary Conditions are used in the non-periodic direction. High order linear/non-linear compact finite difference schemes and a classical Fourier method are employed in the nonperiodic and periodic directions respectively. Unstable disturbances are obtained from the linear stability theory using a Chebyshev/Fourier collocation method. The results regarding transient growth for subsonic Poiseuille flows indicate that disturbances with large amphtudes can create streamwise vortices triggered by streamwise velocity fluctuations of a low frequency. At high Mach number of M = 4.5, the results show that Lambda shock is generated close to the inlet and that acoustic pressure fluctuations appear downstream. Dual vortical structures close to the wall and around the critical layer are also generated downstream in the Poiseuille flow at M = 4.5. The numerical results for supersonic boundary layers at M = 4.5 using non-linear compact schemes indicate the presence of boundary layer instability waves of second mode on the plate after an oblique shock. Finally, the geometry of flow patterns in numerically simulated compressible wakes in a transitional regime has been studied using three-dimensional critical point theory. A statistical robust feature in the tensor invariants of P, Q and R space is explained by the solution trajectories of the three first-order evolution equations of the invariants. Statistics of the right-hand non-linear term of the evolution equations are also studied in this work.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] 前川 博: "圧縮性乱流の位相幾何学的構造"日本流体力学会「ながれ」. 17巻,16号. 411-416 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 前川 博: "高速流体における遷移および乱流シミュレーションとモデリング"日本数値流体力学会誌. 8巻,3号. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hiroshi Maekawa: "Study of the Geometry of flow patterns in a compressible wa**"Proc. of IUTAM Symposium of Geometry and Statistics of Turbulance. 101-102 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yahy**, H. Maekawa, K. Yama: "DNS of Sub-sonic Poiseuille Flows Undergoing Transition"Proc. 3rd Int. symp, of Turbulance, Hopt and Mass Transfer. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山下建志、前川 博: "非線形コンパクトスキームによるCFDの信頼性評価"日本機械学会.第12回計算力学講演会講演論文集. 671-672 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山下建志、X.Deng、前川博: "非線形コンパクト差分スキームを用いた圧縮性境界層のDNS"第13回CFDシンポジウム講演論文集. CD-ROM. FC73 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Hiroshi Maekawa: "Geometry and Statistics of Turbulance(Ed. Ka***)"Kluwner Academic Publishers. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa: "Topology of compressible turbulence"NAGARE. Vol. 17, No. 16. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa: "Supersonic turbulent and transition to turbulent flow simulations and modeling"News Letter/Asian CFD Society. Vol. 8, No. 3. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa, M. Yahayaoui, Y. Ozoe and K. Yamamoto: "DNS of Compressible Plane Poiseuille Flows Undergoing Transition"Proc. Of 3rd ASME/JSME Fluid Engineering Conference. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa and Y. Matsuo: "Study of the Geometry of Flow Patters in Compressible Turbulence"Proc. Of 13th The United States National congress of Applied Mechanics. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa: "Study of the Geometry of Flow Patters in a compressible Wake"Proc. Of IUTAM Symposium on Geometry and Statistics of Turbulence. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yahyaoui, H. Maekawa, and K. Yamamoto: "DNS of Subsonic Poiseuille Flows Undergoing Transition"Proc. Of 3rd International Symposium of Turbulence, Heat and Mass Transfer. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] H. Maekawa: ""Study of the Geometry of Flow patters in a compressible Wake" in Geometry and Statistics of Turbulence (edited by T. Kambe)"Kluwer Academic Publishers. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 前川 博: "圧縮性乱流の位相幾何学的構造"日本流体力学会「ながれ」. 17巻16号. 411-416 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 前川 博: "高速流体における遷移および乱流シミュレーションとモデリング"日本数値流体力学会誌. 8巻3号. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hiroshi Maekawa: "Study of the geometry of flow patterns in a Compressible Wa**"Proc. of IUTAM Simposium on Geometry and Statistics of Turbulence. 101-102 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Moez,H.Maekawa,K.Yamamoto: "DNS of Subsonic Poiseuille Flows Undergoing Transition"Proc. of 3rd International Symposium on Turbulence Heat and Mass Transfer. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山下健志、前川博: "非線形コンパクトスキームによる(F_1)の信頼性評価"日本機械学会、第12回計算力学講演会講演論文集. 671-672 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山下健志、Xiaagang Dang,前川博: "非線形コンパクトスキームを用いた圧縮性境界層のDNS"第13回CFDシンポジウム講演論文集. F07-3 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hiroshi Maekawa: "Geometry and Statistics of Turbulence (Ed.Kambe)"Kluwer Academic Publishers. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Maekawa,M.Yahyreni,N.Ozoe,K.Yamamoto: "DNS of Compressible Plane Poisenille Flows Undergoing Transition" Proc.of 3rd ASME/JSME Joint Fluid Enginery Conference,San Francisco CA. FEDSM97. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Moekawa,Y.Matsuo: "Study of the Geometry of Flow Pattrns in Compressible Turbulence" Proc.of 13th U.S.National Congress of Appl.Mech.FLORIDA USA. FBI (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yahyroni,H.Maekawa K.Yamamoto: "Simulation of Compressible Plane Poisenille Flows Undergoing Transition" 第12回数値流体力学シンポジウム講演論文集. ISSN1344-4103. 429-430 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 前川博.渡辺大輔: "DNSによる超音速後流の遷移構造の研究" 日本流体力学会年会'98講演論文集. ISSN1342-8004. 149-150 (1998)

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1998-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi