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Studies on Numerical Gas Dynamic Laser Facility

Research Project

Project/Area Number 62460072
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Aerospace engineering
Research InstitutionThe University of Tokyo

Principal Investigator

KUBOTA Hirotoshi  Univ. of Tokyo, Faculty of Eng. Professor, 工学部, 教授 (30114466)

Co-Investigator(Kenkyū-buntansha) MATSUZAKA Masayoshi  Univ. of Tokyo, Faculty of Eng. Lecturer (until 1988), 工学部(昭和63年3月まで), 講師 (00010900)
WATANUKI Tadaharu  Univ. of Tokyo, Faculty of Rng. Research Assist, 工学部, 助手 (00182965)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥6,200,000 (Direct Cost: ¥6,200,000)
Fiscal Year 1989: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1988: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1987: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsGas Dynamic Laser / Small-Signal Gain / Laser Power / Numerical Gas Dynamic Laser / ガスダイナミックレーザー / レーザー特性 / レーザー出力 / 振動緩和 / 数値計算コード / 超音速流 / 燃焼 / 計算機プログラム
Research Abstract

A combustion-driven CO_2 GDL (CO_2 Gas Dynamic Laser) consists of several elements of combustion system, gas-dynamics (supersonic flow and vibrational relaxation) system, and optics (resonator and its sub-system) system. Performances of CO_2 GDL is governed by combination of characteristics of these elements.
This research composes a Numerical Gas Dynamic Laser Facility (NGDL) which has numerical codes for calculation of characteristics of each component. The NGDL is to draw an output of small-signal gain and/or laser power when fuel and oxidizer are given and to be used for tool for system optimization.
The results are summarized as follows:
1. The objectives of this research was satisfactorily accomplished.
2. This NGDL has been applied to a system of C_6H_6 (Benzene)/O_2 (Oxygen). Effect of characteristics of each element on small-signal gain and laser power has been clarified. It may be possible that the optimal combination of fuel/oxidizer can be obtained.
3. This NGDL can be applied for expectation and evaluation of the performance of the experimental facility.
More researches are required for establishment of treatment procedure of numerical codes, improvement of computational accuracy and exact description of physical phenomena of GDL.

Report

(4 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 綿貫忠晴、小倉栄二、溝渕泰寛、佐藤茂、久保田弘敏: "燃焼駆動式CO_2ガスダイナミックレ-ザ-の特性(I)超音速ノズル開口比の影響" 日本航空宇宙学会誌. 36. 550-557 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Watanuki,T.,Sato,S.,Itakura,Y.,Ogura,E.,Mizobuchi,Y.and Kubota,H.: "Characteristics of C_6H_6-O_2-N_2 Type CO_2 Gasdynamic Laser." Proceedings of the 7th International Symposium on Gas Fluw and Chemical Lasers,Vienna. 1031. 160-165 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tatsumi,M.,Wada,Y.,Sato,S.,Watanuki,T.and Kubota,H.: "Numerical Analysis on Gain of C_6H_6-O_2-N_2 Type CO_2 GDL" Proceeding of the 7th International Symposium on Gas Flow and Chemical Lasers,Vienna. 1031. 166-171 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Watanuki, T., Ogura, E., Mizobuchi, Y., Sato, S. and Kubota, H.: "Characteristics of Combustion-Driven CO_2 Gas Dynamic Laser (I)Effect of Cross Section Area Ratio of Supersonic Nozzle" J. Japan Society for Aeronautical and Space Sciences, Vol.36, No.419, pp.550-557, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Watanuki, T., Sato, S., Itakura, Y., Ogura, E., Mizobuchi, Y. and Kubota, H.: "Characteristics of C_6H_6-O_2-N_2 Type CO_2 Gasdynamic Laser" Proc. 7th Inter. Symp. on Gas Flow and Chemical Lasers, SPIE Vol.1031, pp.160-165, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Tatsumi, M., Wada, Y., Sato, S., Watanuki, T. and Kubota, H.: "Numerical Analysis on Gain of C_6H_6-O_2-N_2 Type CO_2 GDL" Proc. 7th Inter, Symp. on Gas Flow and Chemical Lasers, SPIE Vol.1031, pp.166-171, 1988.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 綿貫忠晴,小倉栄二,溝泰寛,佐藤茂,久保田弘敏: "燃焼駆動式CO_2ガスダイナミックレ-ザ-の特性(I)超音速ノズル開口比の影響" 日本航空宇宙学会誌. 36. 550-557 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] Watanuki,T.,Sato,S.,Itakura,Y.,Ogura,E.,Mizobuchi,Y.and Kubota,H.: "Characteristics of C_6H_6-O_2-N_2 Type CO_2 Gasdynamic Laser." Proceedings of the 7th International Symposium on Gas Flow and Chemical Lasers,Vienna. 1031. 160-165 (1988)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tatsumi,M.,Wada,Y.,Sato,S.,Watanuki,T.and Kubota,H.: "Numerical Analysis on Gain of C_6H_6-O_2-N_2 Type CO_2 GDL" Proceedings of the 7th International Symposium on Gas Flow and Chemical Lasers,Vienna. 1031. 166-171

    • Related Report
      1989 Annual Research Report
  • [Publications] Watanuki.T.: Proc.7th Inter.Symp.on Gas Flow & Chemical Lasers. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Tatumi.M.: Proc.7th Inter.Symp.on Gas Flow & Chemical Lasers. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 綿貫忠晴: 日本航空宇宙学会誌. 36. 550-557 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Wada.Y;etal: ALAA Paper 87-1452. (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Watanuki.T: Proc.7th Int.Symp,Gas Flow 〓 Chem,Laser. (1988)

    • Related Report
      1987 Annual Research Report
  • [Publications] Tatsumi.M: Proc.7th Into Symp.Gas Flow 〓 Chem Laser. (1988)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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