• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

粉体振動層の局在モードとレオロジー的特性の研究

Research Project

Project/Area Number 09740314
Research Category

Grant-in-Aid for Encouragement of Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field 物性一般(含基礎論)
Research InstitutionKyoto University

Principal Investigator

早川 尚男  京都大学, 大学院人間・環境学研究科, 助教授 (90222223)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsパイプ流 / 交通流 / f^<-4 / 3> / 摩擦 / 離散要素法 / 回転ドラムの偏析 / 粉体振動層の熱力学 / 流動層の熱力学 / 融合ソリトン / 3>スペクトル / 普遍性
Research Abstract

本年度は2年計画の2年目として以下の成果を挙げることができた。
まずは初年度に行なった研究成果の学術詩への出版である。初年度はパイプナかの粉体流並びにそれに関連した交通流の問題に取り組み、
i)完全に一次元的な場合のほぼ厳密な解析解を求めたこと、ii)擬一次元的な場合にパワースペクトルとしてF^<-4/3>乗則が得られることの理論的、数値的な説明、を成果として得た。これらの結果はモデルの詳細に依らない普遍的なものであり汎用性が広いと期待される。
本年度に新らたに取り組んだ問題として剪断応力したでの粉体の摩擦の問題がある。申請者はまず現象論的モデルを提出し、実験で観測された興味深い現象の多くを説明することに成功した。また開発した離散要素法によっていも実験結果を再現し、現象論モデルのミクロな意味付けが明らかになりつつある。尚、これらの研究は投稿中、もしくは投稿準備中である。
その他、回転ドラム中の偏析に対して有効偏微分方程式を提出し、実験の説明に成功したが、肝心の振動層についてはシミュレーションのデータ集積にとどまり多くの成果は得られなかった。

Report

(2 results)
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] K.Ichiki and H.Hayakawa: "Analysis of statistical quantities in simulation of fluidized beds" Physical Review E. 57. 1990-1996 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Hayakawa and K.Nakanishi: "Theory of traffic jam in a one-lane model" Physical Riview E. 57. 3839-3845 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] O.Moriyama,N.Kuroiwa M.Matsushita & H.Hayakawa: "4/3Law of Granular Particles Flowing through a Vertical Pipe" Physical Review Letters. 80. 2833-2836 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Hayakawa & K.Nakanishi: "Universal Behaviors in Granular Flow and Fraffic Flow" Progress of Theoretical Physics,Supplement. 130. 57-75 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Wada and H.Hayakawa: "Kink Solution in ab Fluid Model of Traffic Flow" Journal of Physical Society of Japan.67. 763-766 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Hayakawa & T.Tkaai: "Universal Mathematical Structures in Quasi 1D Fluid-Particle Systems" Advanced Technologies for Particle Processing. 2. 521-526 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Puri and H.Hayakawa: "Dynamical Behaviour of Rotated Granulaz Mixtures" Physica A. (印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] 早川 尚男: "交通流を粉体流としてみる" パリティ. 13・5. 13-22 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 粉体工学会編: "粉体シミュレーション入門" 産業図書, 196 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 日本粉体工業技術会編: "流動層ハンドブック" 倍風館, 448 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 早川尚男・那須野悟: "粉体の物理(物理学最前線)" 共立出版(印刷中),

    • Related Report
      1998 Annual Research Report
  • [Publications] Hisao Hayakawa: "Thermodynamic Theory of Weakly Excited Granular Systems" Physical Review Letters. 78. 2764-2767 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hisao Hayakawa: "Fermi Statics of Weakly Excited Granular Systems" Powders & Grains 97(Proceedings of conference on Powders & Grains). 547-550 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hisao Hayakawa: "Two Hydrodynamic Models of Granular Convection" Powders & Grains 97(Proceedings of conference on Powders & Grains). 417-420 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kengo Ichiki: "Analysis of Statisitical Quantities in Simulation of Fluidized Beds" Physical Review E. 57. 1990-1996 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hisao Hayakawa: "Granular Microhydrodynamics:Energence of f^<-4/3> law" Statistical Physics:Proceedings of 2nd Tohwa Univ International meeting. 印刷中 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] O.Moriyama: "4/3-law of Granular Particles Flowing Through a vartical Pipe" Physical Review Letters. 80. 2833-2836 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hisao Hayakawa: "Theory of traffic jam in a one-lane model" Physical Review E. 57(April)(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hisao Hayakawa: "Universal Behaviors in Granular Flows and Traffic Flows" Progress of Theoretical Physics:Supplement. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Shigeki Wada: "Kink Solution in a Fluid Model of Traffic Flows" Journal of Physical Society Japan. 67March(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 日本粉体工業技術協会: "流動層ハンドブック" 株式会社 培風館(印刷中), 416 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 日高重助: "粉体シミュレーション入門" 産業図書(印刷中), (1998)

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi