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Abstraction of Microscopic Information and Establishment of Boundary Condition on Phase Change by Molecular Dynamics, Molecular Gas Dynamics and Experiment

Research Project

Project/Area Number 17360074
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionHokkaido University

Principal Investigator

FUJIKAWA Shigeo  Hokkaido University, 大学院・工学研究科, 教授 (70111937)

Co-Investigator(Kenkyū-buntansha) YANO Takeru  大阪大学, 大学院・工学研究科, 教授 (60200557)
ICHIJO Makoto  北海道大学, 大学院・工学研究科, 助教 (50001988)
Project Period (FY) 2005 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥16,440,000 (Direct Cost: ¥15,300,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2006: ¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 2005: ¥7,300,000 (Direct Cost: ¥7,300,000)
Keywords気液界面 / 相変化 / 蒸発係数 / 凝縮係数 / 分子動力学 / 分子気体力学 / 蒸発・凝縮 / 気体論境界条件 / 流体工学 / 界面 / 境界条件
Research Abstract

本研究は分子動力学、分子気体力学、衝撃波管実験により,非平衡気液界面での相変化について以下のことを明らかにしたものである。(1)物理的に正しい気体論境界条件を分子動力学解析により定式化し、この境界条件を用いた分子気体力学解析により流体力学方程式の気液境界条件を導いた。(2)水とメタノールの凝縮係数は非平衡状態では1よりも小さな値をとり、平衡状態に近づくにつれてそれぞれの蒸発係数の値に漸近する。(3)ナノ液滴の蒸発係数は微小な液滴ほど蒸発係数が小さい。(4)ナノ液滴の飽和蒸気圧は微小な液滴ほど蒸気圧が高い。(5)ナノ液滴の表面張力は微小な液滴ほど表面張力が小さい。

Report

(5 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (23 results)

All 2009 2008 2007 2006 2005 Other

All Journal Article (17 results) (of which Peer Reviewed: 9 results) Presentation (3 results) Remarks (3 results)

  • [Journal Article] アルゴンのナノ液滴と蒸気の気液平衡状態の分子動力学2009

    • Author(s)
      矢口久雄・矢野猛・藤川重雄
    • Journal Title

      日本機械学会論文集(B) (掲載決定)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Molecular Gas Dynamics on Condensation and Evaporation of Water Induced by Sound Waves2009

    • Author(s)
      Inaba, M., Fujikawa, S. and Yano, T.
    • Journal Title

      Rarefied Gas Dynamics(AIP Proceedings) Vol.1084

      Pages: 671-676

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] アルゴンのナノ液滴と蒸気の気液平衡状態の分子動力学2009

    • Author(s)
      矢口久雄、矢野猛、藤川重雄
    • Journal Title

      日本機械学会論文集(B1編)(掲載決定) (未定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular Gas Dynamics on Condensation and Evaporation of Water Induced by Sound Waves2009

    • Author(s)
      Inaba, M., Yano, T. and Fujikawa, S.
    • Journal Title

      Rarefied Gas Dynamics (American Institute of Physics) 1084

      Pages: 671-676

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Condensation Coefficient of Water in a Weak Condensation State2009

    • Author(s)
      Kobayashi, K., Watanabe, S., Yamano, D., Yano, T. and Fuiikawa, S.
    • Journal Title

      Fluid Dynamics Research 40

      Pages: 585-596

    • NAID

      10021168647

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Condensation Coefficient of Water in a Weak CondensationState2008

    • Author(s)
      Kobayashi, K., Watanabe, S., Yamano, D.,Yano, T. and Fujikawa, S.
    • Journal Title

      Fluid Dynamics Research Vol.40

      Pages: 585-596

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Condensation Coefficient of Water in a Weak Condensation State2008

    • Author(s)
      Kobayashi, K., Watanabe, S., Yamano, D., Yano, T. and Fujikawa, S.
    • Journal Title

      Fluid Dynamics Research(Elsevier) 特集号(印刷中)

    • NAID

      10021168647

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Condensation and Evaporation Induced by a Standing Sound Wave2007

    • Author(s)
      Inaba, M., Kobayashi, K., Yano, T. and Fujikawa, S.
    • Journal Title

      Proceedings of the 6th International Conference on Multiphase Flow(Leipzig, Germany) (CD-ROM)

      Pages: 1-5

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular Dynamics Study of Evaporation of Nanodroplets2007

    • Author(s)
      Yaguchi, H., Yano, T. and Fujikawa, S.
    • Journal Title

      Proceedings of the 6th International Conference on Multiphase Flow(Leipzig, Germany) (CD-ROM)

      Pages: 1-5

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular Gas Dynamics Approaches to Interfacial Phenomena Accompanied with Condensation2006

    • Author(s)
      S.Mikami, K.Kobayashi, T.Ota, S.Fujikawa, T.Yano, M.Ichijo
    • Journal Title

      Experimental Thermal and Fluid Science 30・8

      Pages: 795-800

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Shock-Tube-Deduced Condensation Coefficients of Methanol and Water Vapors2006

    • Author(s)
      S.Watanabe, K.Kobayashi, M.Inaba, S.Fujikawa, T.Yano, M.Ichijo
    • Journal Title

      Proceedings of International Symposium on Advanced Fluid/Solids Science and Technology in Experimental Mechanics CD-ROM

      Pages: 183-186

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Molecular Gas Dynamics Approaches to Interfacial Phenomena Accompanied with Condensation2006

    • Author(s)
      S.Mikami, K.Kobayashi, T.Ota, S.Fujikawa, T.Yano, M.Ichijo
    • Journal Title

      Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics (印刷中)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Kinetic Boundary Condition at aVapor-Liquid Interface2005

    • Author(s)
      Ishiyama, T., Yano, T. and Fujikawa, S.
    • Journal Title

      Physical Review Letters Vol.95

    • Related Report
      2008 Final Research Report
  • [Journal Article] Kinetic Boundary Condition at a Vapor-Liquid Interface2005

    • Author(s)
      T.Ishiyama, T.Yano, S.Fujikawa
    • Journal Title

      Physical Review Letters 95・8

    • NAID

      120000960594

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 衝撃波管管端でのメタノール蒸気の凝縮過程に関する分子気体力学解析2005

    • Author(s)
      矢野猛, 小林一道, 藤川重雄
    • Journal Title

      日本機械学会論文集(B編) 71・702

      Pages: 428-435

    • NAID

      110005051420

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Molecular Dynamics Study on the Evaporation Part of the Kinetic Boundary Condition at the Interface between Water and Water Vapor2005

    • Author(s)
      T.Ishiyama, T.Yano, S.Fujikawa
    • Journal Title

      Rarefied Gas Dynamics, AIP Conference Proceedings 762

      Pages: 491-496

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Condensation of Methanol Vapor onto its Liquid Film on a Solid Wall behind a Reflected a Shock Wave2005

    • Author(s)
      T.Yano, K.Kobayashi, S.Fujikawa
    • Journal Title

      Rarefied Gas Dynamics, AIP Conference Proceedings 762

      Pages: 208-213

    • Related Report
      2005 Annual Research Report
  • [Presentation] Molecular Transport Phenomenaand the Kinetic Boundary Conditionat the Vapor-Liquid Interface2009

    • Author(s)
      Fujikawa, S.
    • Organizer
      The7^<th>World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics International Congress of Theoretical and Applied Mechanics(ICTAM)
    • Place of Presentation
      Jagiellonian University's Auditorium Maximum, Krakow, Poland
    • Year and Date
      2009-07-01
    • Related Report
      2008 Final Research Report
  • [Presentation] A Molecular Dynamics Study of Vapor Flow Induced by Evaporation from a Nanodroplet2008

    • Author(s)
      Yaguchi, H., Yano, T. and Fujikawa, S.
    • Organizer
      The 7th JSME-KSME Thermal and Fluids Engineering Conference
    • Place of Presentation
      Kaderu 2.7, Sapporo
    • Year and Date
      2008-10-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] Dependence of Saturated Vapor Pressureand Surface Tension Coefficient on Radius for an Argon Nanodroplet2008

    • Author(s)
      Yaguchi, H., Yano, T. and Fujikawa, S.
    • Organizer
      The XXIIInternational Congress of Theoreticaland Applied Mechanics(ICTAM)
    • Place of Presentation
      the Adelaide Convention Centre, Adelaide, Australia
    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://mech-me.eng.hokudai.ac.jp/~info/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://mech-me.eng.hokudai.ac.jp/~info/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://mech-me.eng.hokudai.ac.jp/~info/

    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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