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1997 Fiscal Year Final Research Report Summary

NONEEQUILIBRIUM PHNOMENA OF LOW-DENSITY JETS IN SPACE

Research Project

Project/Area Number 08044155
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research Field Aerospace engineering
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

NISHIDA Michio  Kyushu Univ., Faculty of Eng., Professor, 工学部, 教授 (10025968)

Co-Investigator(Kenkyū-buntansha) BEYLICH A.E.  Technical University of Aachen, Professor, 教接
DANKERT C.  German Aerospace Research Establishment, Senior Staff, 希薄極超音速流部, 研究員
NIIMI Tomohide  Nagoya Univ., Faculty of Eng., Associate Professor, 工学研究科, 助教授 (70164522)
PARK Chul  Tohoku Univ., Faculty of Eng., Professor, 工学研究科, 教授 (30271612)
TESHIMA Koji  Kyoto Univ.of Education, Faculty of Education, Professor, 教育学部, 教授 (90026104)
Project Period (FY) 1996 – 1997
KeywordsSpace / Jets / Low Density / Nonequilibrium / Rarefied Gas Dynamics
Research Abstract

The following results were obtained :
1) The DSMC analysis for investigating the free jet structure issuing from an orifice into a low-pressure circumstance has been established, whreby the free jet structure for various Knudsen numbers has been revealed.
2) Jet impingement problems in space have been solved using the DSMC and the flow fields of nomal, parallel and oblique jet impingements have been numerically analyzed. The numerical results have been compared with the experiments made in German Aerospace Research Establishment and good agreements have been obtained.
3) Nonequilibrium phenomena in arc-heated high-temperature gas jet considered for an arc jet thruster and thermal protection system experiment have been numerically investigated using a six temperature model, namely in a case of air, translational temperature, nitrogen vibrational temperature, oxygen vibrational temperature, nitric oxide vibrational temperature, nitric oxide ion vibrational temperature and electron temperature. Numerical results show that there exists thermal nonequilibrium.
4) REMPI (Resonantly Enhanced Multiohoton Ionization) technique has been developed and the fundamental properties of the REMPI spectra have been investigated. The modeling of the ionization process is derived and the ion current is predicted from the solution. In addition, the theoretical REMPI spectra are calculated and compared with the experiments.
5) Flow visualization technique using a laser-induced fluorescence method has been developed and applied to the investigation of three-dimensional free jet structure.

  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] M.Nishida & M.Matsumoto: "Thermochemical Nonequilibrium in Rapidly Expanding Flows of High-Temperature Air" Zeitschrift fuer Naturforschung. Vol.52a. 358-368 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Hirakawa, S.Aso, M.Nlshida & M.Matsumoto: "Arc-Heated Wind Tunnel Experiments" Proc.2nd Asian-Pacific Conf.on Aerospace Technology and Science,Dun Huang,China,. 125-130 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Nishida & M.Matsumoto: "Numerical Analysis of Nonequilibrium Freejets Using a Multi Vibrational-Temperature Model" Rarefied Gas Dynamics 20(Peking University Press,Beijing). 531-536 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C.Dankert,G.Gundlach,A.Mohamed S.Novopashin,T.Pot: "Gas-Surface-Interaction Measured by Spectroscopy Methods" Proc.17th ICIASF,Calif.,USA. 1997. (329-335)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Novoppashin,C.Dankert,K.Lehmkoester,A.Mohamed,T.Pot: "Rotational Temperature Measurements of N2-Molecules Reflected from a Wall" 20th Int.Symp.on Rarefied Gas Dynamlcs. 19-24 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Usami, K.Teshima: "Monte Carlo Simulation of Axisymmetric Underexpanded Jets in Near Continuum,Transition and Scattering Regimes" Proc.Int.Conf.Fluid Eng.'97. Vol.III. 1259-1264 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Teshima, M.Usami: "An Experimental Study and DSMC Sumulation of Rarefied Supersonic Jets" Rarefied Gas Dynamics 20. 567-572 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Oguchi, T.Soga: "Computation of Rarefied Gas Flows at Near-Equilibrium State by Discrete-Velocity Ordinate Method" Rarefied Gas Dynamics(Peking univ.Press). 285-290 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Soga: "On the Singular Behavior of Solution to the Kinetic Model Equation" Proc.2nd Asian-Pacific Conf.on Aerospace Technology and Science, Dun Huang,China. 57-63 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 新美 智秀: "02-LIPFによる超音速流れの可視化" 日本機械学会論文集(B編). 62-594. 628-636 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Niimi: "Flow Field of Interacting Parallel Supersonic Free Jets" JSME Int.J.39-1. 95-100 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 新美 智秀: "対向する超音速自由噴流の構造解析" 日本機械学会論文集(B編). 62-596. 1377-1382 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Niimi: "Visualization of a Supersonic Flow Using 02-LIPF" JSME Int.J.39-3. 533-539 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 新美 智秀: "02-LlPFを用いた高温空気流の温度計測法に関する研究" 日本機械学会論文集(B). 63-610. 2029-2035 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Chul Park: "Evaluation of Real-Gas Effects in High Enthalpy Impulse Test Facilities.A Review" Journal of Thermophysics and Heat Transfer. Vol.11. l0-18 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Chul Park: "Evaluation of Real-Gas Effects in High Enthalpy Aerothermal Facilities.A Review" Journal of Thermophysics and Heat Transfer. Vol.11. (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Chul Park: "Evaluation of Real-Gas Effects in High Enthalpy Aerothermal Facilities.A Review" Journal of Thermophysics and Heat Transfer. Vol.11. (1997)330-338

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Nishida & M.Matsumoto: "Thermochemical Non-equilibrium in Rapidly Expanding Flows of High-Temperature Air" Zeitschrift fuer Naturforschung. Vol.52a. 358-368 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Hirakawa, S.Aso, M.Nishida & M.Matsumoto: "Arc-heated Wind Tunnel Experiments" Proc.2nd Asian-Pacific Conf.on Aerospace Technology and Science, China. 125-130 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Nishida & M.Matsumoto: "Numerical Analysis of Nonequilibrium Freejets Using a Multi Vibrational Temperature Model" Rarefied Gas Dynamics. 20. 531-536 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Dankert, G.Gundlach, A.Mohamed, & S.Novopashin: "Gas-Surface-Interaction Measured by Spectroscopic Methods" Proc.17th ICIASF,calif., USA. 329-335 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Novopashin, C.Dankert, K.Lehmkoester, A.Mohamed & Y.Pot: "Rotational Temperature Measurements of N2-Molecules Reflected from a Wall" 20th Int.Symp.on Rarefied Gas Dynamics. 19-24 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Usami & K.Teshima: "Monte Carlo Simulation of Axisymmetric Underexpanded Jets in Near Continuum, Transition and Scattering Regimes" Proc.Int.Conf.Fluid Eng.'97. Vol.III. 1259-1264 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Teshima & M.Usami: "An Experiments Study and DSMC Simulation of Rarefied Supersonic Jets" Rarefied Gas Dynamics. 20. 567-572 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Oguchi T.Soga: "Computation of Rarefied Gas Flows at Near-Equilibrium State by Discrete-Velocity Ordinate Method" Rarefied Gas Dynamics. 20. 285-290 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Soga: "On the singular Behavior of solution to the Kinetic Model Equation" Proc.2nd Asian-Pacific Conf.on Aerospace Technology and Sciences, China. 57-63 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Niimi: "Flow Field of Interacting Parallel Supersonic Free Jets" JSME Int.J.39-1. 95-100 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Niimi: "Visualization of a Supersonic Folw Using 02-LIPF" JSME Int.J.39-3. 533-539 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Park: "Evaluation of Real-Gas Effects in High Enthalpy Impulse Test Facilities.A Review" J.Thermophys.and Heat Transfer. Vol.11. 10-18 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] C.Park: "Evaluation of Real-Gas Effects in High Enthalpy Aerothermal Facilities.A.Review" J.Thermophys.and Heat Transfer. Vol.11. 330-338 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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