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Studies on rarefied gas flows via an accurate finite-difference analysis of the Boltzmann equation

Research Project

Project/Area Number 21760129
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionKyoto University

Principal Investigator

KOSUGE Shingo  京都大学, 大学院・工学研究科, 助教 (40335188)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsボルツマン方程式 / 希薄気体力学 / 分子気体力学 / 気体分子運動論 / 自由分子気体 / イオ / 惑星大気 / 数値流体力学 / 気体分子運動諭
Research Abstract

(1) Steady behavior of a free-molecular gas(a highly rarefied gas in which the molecular collisions can be neglected) between parallel plates with non-uniform temperature is analyzed to clarify the dependence of the flow field on the boundary condition. Moreover, a new example where no steady flow is induced is investigated.
(2) The behavior of Io's atmosphere is studied via a finite-difference analysis of a model Boltzmann equation. Unsteady flows caused by condensation and sublimation of sulfur dioxide(the main component of the atmosphere) during and after eclipse are obtained.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (11 results)

All 2011 2010 2009

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (9 results)

  • [Journal Article] Steady flows of a highly rarefied gas induced by nonuniform wall temperature2011

    • Author(s)
      Shingo Kosuge, Kazuo Aoki, Shigeru Takata, Ryosuke Hattori, Daisuke Sakai
    • Journal Title

      Physics of Fluids

      Volume: 23巻 Issue: 3

    • DOI

      10.1063/1.3558872

    • NAID

      120004754327

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Steady flows of a highly rarefied gas induced by nonuniform wall temperature2011

    • Author(s)
      小菅真吾
    • Journal Title

      Physics of Fluids

      Volume: 23

    • NAID

      120004754327

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 食の間の凝縮・昇華に伴うイオの大気の非定常流:モデル・ボルツマン方程式の数値解析2011

    • Author(s)
      小菅真吾
    • Organizer
      日本流体力学会年会2011
    • Place of Presentation
      首都大学東京南大沢キャンパス
    • Year and Date
      2011-09-08
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] 微量な非凝縮性気体がイオの大気の昇華過程に及ぼす影響:モデル・ボルツマン方程式による数値解析2010

    • Author(s)
      小菅真吾
    • Organizer
      第24回数値流体力学シンポジウム
    • Place of Presentation
      慶應義塾大学日吉キャンパス
    • Year and Date
      2010-12-20
    • Related Report
      2011 Final Research Report
  • [Presentation] 微量な非凝縮性気体がイオの大気の昇華過程に及ぼす影響:モデル・ボルツマン方程式による数値解析2010

    • Author(s)
      小菅真吾
    • Organizer
      第24回 数値流体力学シンポジウム
    • Place of Presentation
      慶應義塾大学 日吉キャンパス
    • Year and Date
      2010-12-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Steady flows of a highly rarefied gas induced by non-uniform temperature of a boundary2009

    • Author(s)
      小菅真吾
    • Organizer
      DSMC09 : Theory, Methods, and Applications
    • Place of Presentation
      サンタフェ、アメリカ
    • Year and Date
      2009-09-14
    • Related Report
      2011 Final Research Report
  • [Presentation] Steady flows of a highly rarefied gas induced by non-uniform temperature of a boundary2009

    • Author(s)
      小菅真吾
    • Organizer
      DSMC09 : Theory, Methods, and Applications
    • Place of Presentation
      Inn and Spa at Loretto(サンタフェ,アメリカ)
    • Year and Date
      2009-09-14
    • Related Report
      2009 Annual Research Report
  • [Presentation] 境界の温度分布により誘起される高度に希薄な気体の定常流2009

    • Author(s)
      小菅真吾
    • Organizer
      日本流体力学会年会2009
    • Place of Presentation
      東洋大学白山キャンパス
    • Year and Date
      2009-09-02
    • Related Report
      2011 Final Research Report
  • [Presentation] 境界の温度分布により誘起される高度に希薄な気体の定常流2009

    • Author(s)
      小菅真吾
    • Organizer
      日本流体力学会年会2009
    • Place of Presentation
      東洋大学・白山キャンパス(東京)
    • Year and Date
      2009-09-02
    • Related Report
      2009 Annual Research Report
  • [Presentation] Steady flows of a highly rarefied gas induced by non-uniform temperature of a boundary2009

    • Author(s)
      小菅真吾
    • Organizer
      21^<st> International Conference on Transport Theory
    • Place of Presentation
      トリノ工科大学(トリノ、イタリア)
    • Year and Date
      2009-07-13
    • Related Report
      2011 Final Research Report
  • [Presentation] Steady flows of a highly rarefied gas induced by non-uniform temperature of a boundary2009

    • Author(s)
      小菅真吾
    • Organizer
      21st International Conference on Transport Theory
    • Place of Presentation
      トリノ工科大学(トリノ,イタリア)
    • Year and Date
      2009-07-13
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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