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Physical and Numerical Aspects of Self-Induced Shock Oscillatory Flowfields.

Research Project

Project/Area Number 11650173
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionKyoto Institute of Technology

Principal Investigator

MATSUNO Kenichi  Kyoto Institute of Technology, Department of Mechanical and System Engineering, Professor, 工芸学部, 教授 (70252541)

Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2001: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsShock wave / Self-induced oscillation / Compressible flow / Supersonic flow / Jet / Numerical analysis / CFD / Spectral analysis
Research Abstract

Self-Induced shock oscillation is essential physics in flow filed of supersonic under-expanded jet. Although there are many simulations for the self-induced shock oscillation flow fields, there exist strong dependency of resultant frequency on schemes used. Thus each schemecalculates its frequency of the oscillation. Thus, it is verydifficult to simulate these flow fields since the real physics should reveal only type of spectrum. The purpose of the present project is to investigate the cause of this difference and to develop the accurate and suitable scheme to calculate such self-induced shock oscillation.
The project has been carried out during fiscal years 1999 to 2001. In the project, four types of the flow fields have been investigated with three types of flux functions and explicit/implicit time integration schemes. Parametric studies on the effect of the grid spacing and time/space accuracy. Results show the following conclusions. Viscous effect is not strong, the inviscid transportation of the vortices is essential physics of the shock oscillation. As for the effect of the grid spacing, the large grid spacing produces large numerical damping and results non-oscillatory flow. Thus it is shown that the appropriate resolution is essential for capturing shock oscillations. Although geometry of the problem is axisymetric, threedimensional effect is shown to be important. In this project, a new numerical scheme which especially suitable to simulate unsteady shocked flows has been proposed and developed. The scheme is based and estimated on the space-time control volume in order to assure the conservation of the physical properties and geometric properties.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] 三原清孝, 松野謙一, 里深信行: "移動格子有限体積法 I:基礎的定式化と検証"日本機械学会論文集B編. 65巻637号. 2945-2953 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kenichi Matsuno: "High-Order Upwind Method for Hyperbolic Grid Generation"Computers and Fluids. Vol.28,No.7. 825-851 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 松野謙一: "楕円型格子形成法における格子の重なりについて"日本航空宇宙学会論文集. 48巻557号. 188-189 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kenichi Matsuno: "Hyperbolic-Elliptic Zonal Hybrid Method of Grid Generation for Three-Dimensional Internal flow Regions"CFD Journal. Special Number. 509-516 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 佐藤泰啓, 松野謙一, 中川雄策, 里深信行: "移動格子有限体積法、第2報;非定常流に対する解適合ダイナミック格子法の構築"日本機械学会論文集B編. 67巻653号. 23-28 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 松野謙一: "楕円型格子形成法における格子制御"日本機械学会論文集B編. 67巻653号. 17-22 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Mihara, K.Matsuno, and N.Satofuka: "An iterative Finite-Volume Scheme on a Moving Grid, 1, The fundamental Formulation and Vlidation"Transactions of the Japan Society of Mechanical Engineers. Vol. 65, No.637. 2945-2953 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Matsuno: "High-Order Upwind Method for Hyperbolic Grid Generation"Computers and Fluids. Vol. 28, No. 7. 825-851 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Matsuno: "On Grid Folding in Elliptic Grid Generation"Journal of the Japan Society for Aeronautical and Space Sciences. Vol. 48, No. 557. 188-189 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Matsuno: "Hyperbolic-Elliptic Zonal Hybrid Method of Grid Generation for Three-Dimensional Internal flow Regions"CFD Journal, Special Number. 509-516 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Sato, K.Matsuno, Y.Nakagawa, and N.Satofuka: "An iterative Finite-Volume Scheme on a Moving Grid, 2, Consruction of a Solution-Adaptively Moving-Grid Method for Unsteady Compressible Flows"Transactions of the Japan Society of Mechanical Engineers. Vol. 67, No.653. 23-28 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Matsuno: "Grid Control for Elliptic Grid Generation"Transactions of the Japan Society of Mechanical Engineers. Vol. 67, No.653. 17-22 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Matsuno, Kiyotaka Mihara, and N.Satofuka: "A Moving-Mesh Finite-Volume Scheme for Compressible Flows"Computational Fluid Dynamics 2000 Springer. 705-710 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Matsuno: "Hyperbolic Upwind Method for Prismatic Grid Generation"AIAA 2000-1003, 38th AIAA Aerospace Sciences Meeting. 1-6 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Matsuno and Y.Sato: "Solution-Adaptive Finite-Volume Method for Calculating Unsteady Shocked Flows"COMPUTATIONAL MECHANICS : TECHNIQUES AND DEVEKOPMENT, CIVIL-COMP Press, UK. 291-296 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Matsuno: "Numerical Aspect of Flowfield of Self-Induced Shock Oscillation in Underexpanded Jet"ISTS 2000-e-14, Proc. 22nd ISTS. Vol. 1. 937-942 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kenichi Matsuno: "A Moving-Mesh Finite-Volume Scheme for Compressible Flows"Computational Fluid Dynamics 2000, Springer. 705-710 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kenichi Matsuno: "Adaptively-Moving-Grid Simulation of Unstedy Shocked Flows"ISTS-2002-e-22, Proceedings of 23rd International Symposium on Space Technology and Science. 1-6 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 松野謙一: "楕円型格子形成法における格子の重なりについて"日本航空宇宙学会論文集. Vol.48,No.557. 188-189 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 松野謙一: "楕円型格子形成法における格子制御"日本機械学会論文集B編. 67卷653号. 17-22 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 佐藤泰啓: "移動格子有限体積法、第2報;非定常流に対する解適合ダイナミック格子法の構築"日本機械学会論文集B編. 67卷653号. 23-28 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 三原清孝: "移動格子有限体積法I;基礎的定式化と検証"日本機械学会論文集B編. 65巻637号. 2945-2953 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kenichi Matsuno: "High-Order Upwind Method for Hyperbolic Grid Generation"Computers & Fluids. Vol.28,No.7. 825-851 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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