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2009 Fiscal Year Final Research Report

Coking characteristics of low density ablators

Research Project

  • PDF
Project/Area Number 19760564
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Aerospace engineering
Research InstitutionNagoya University

Principal Investigator

TAKEHARU Sakai  Nagoya University, 大学院・工学研究科, 准教授 (90323047)

Project Period (FY) 2007 – 2009
Keywordsアブレーション / コーキング / 空力加熱 / 炭素繊維強化断熱複合材料
Research Abstract

Coking phenomenon in low density carbon phenolic ablative material exposed to aerodynamic heating is examined experimentally. The in-depth density and gas permeability of the material heated in an arcjet wind tunnel is measured. Toward the surface within the char layer, the density increases and the gas permeability decreases respectively. The reason for such a trend is likely due to coking effect: coking in the char layer is known as a phenomenon that when the pyrolysis gas passes through the porous char layer to the surface, solid carbon is deposited within the char layer under the chemical decomposition reaction of hydrocarbon species such as CH4.It is find in this study that coking could occur in a low density carbon-phenolic ablator.

  • Research Products

    (9 results)

All 2010 2009 2008

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (6 results)

  • [Journal Article] Computational Simulation of Arc Heater Flows for Martian Atmosphere, Transactions of Japan Society for Aeronautical and Space Sciences2009

    • Author(s)
      Sakai T., (他2名)
    • Journal Title

      Space Technology Japan 7

      Pages: 43-47

    • Peer Reviewed
  • [Journal Article] 軽量アブレータの熱応答特性解析2008

    • Author(s)
      小林祐介, 酒井武治, (他4名)
    • Journal Title

      第39回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2007論文集 JAXA-SP-07-016

      Pages: 56-61

  • [Journal Article] コーキングに関する研究2008

    • Author(s)
      小林祐介, 酒井武治, (他4名)
    • Journal Title

      熱防御システム解析技術向上の研究(JAXA Research and Development Report)

      Pages: 25-31

  • [Presentation] スポレーション粒子のレーザー光透過減衰実験2010

    • Author(s)
      栗林充伸, 冨田昌美, 酒井武治, 他3名
    • Organizer
      平成21年度衝撃波シンポジウム
    • Place of Presentation
      埼玉大学
    • Year and Date
      2010-03-18
  • [Presentation] 炭化アブレータの炭化層形成2009

    • Author(s)
      酒井武治, 他6名
    • Organizer
      第53回宇宙科学術連合講演会
    • Place of Presentation
      京都大学
    • Year and Date
      2009-09-10
  • [Presentation] An Experimental and Numerical Study on Thermal Response of Ablators2009

    • Author(s)
      Tomita M.
    • Organizer
      27th International Symposium on Space Technology and Science
    • Place of Presentation
      筑波国際センター
    • Year and Date
      2009-07-09
  • [Presentation] An Experimental Study on Thermal Response of Low Density Carbon-Phenolic Ablators2009

    • Author(s)
      Kobayashi Y., Sakai T., (他5名)
    • Organizer
      47th Aerospace Sciences Meeting
    • Place of Presentation
      アメリカ合衆国オーランドワールドセンターマリオット
    • Year and Date
      2009-01-07
  • [Presentation] 軽量アブレータの熱応答特性2008

    • Author(s)
      小林祐介, 酒井武治, (他6名)
    • Organizer
      平成20年度宇宙航行の力学シンポジウム
    • Place of Presentation
      JAXA宇宙科学研究本部, 神奈川県相模原市
    • Year and Date
      2008-12-04
  • [Presentation] 軽量アブレータの炭化過程2008

    • Author(s)
      酒井武治, 小林祐介, (他5名)
    • Organizer
      第52回宇宙科学連合講演会
    • Place of Presentation
      淡路島夢舞台国際会議場
    • Year and Date
      2008-11-05

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Published: 2011-06-18   Modified: 2016-04-21  

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