Molecular gas dynamics on unsteady evaporation and condensation flows

• Project/Area Number: 25820046
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Osaka University
• Principal Investigator: Inaba Masashi 大阪大学, 工学(系)研究科(研究院), 助教 (00648511)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: 流体力学 / 分子気体力学 / 気液界面 / 蒸発・凝縮 / Boltzmann方程式

Outline of Final Research Achievements

Half-space problems for unsteady monatomic and polyatomic vapor flows with weak evaporation and condensation were investigated on the basis of molecular gas dynamics. Relation between macroscopic variables at infinity and on the vapor-liquid interface were numerically derived. In addition, the multiscale structure of unsteady flow filed accompanied with evaporation and condensation at the interface was clarified.

Research Products

• [Presentation] Half-space Problem of unsteady evaporation and condensation of polyatomic gas (2016)
  • Author(s): Masashi Inaba and Takeru Yano
  • Organizer: 30th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: University of Victoria, Victoria BC, Canada
  • Year and Date: 2016-07-10
  • Int'l Joint Research
• [Presentation] 平面凝縮相における弱い蒸発・凝縮によって誘起される多原子分子蒸気の非定常流れ (2015)
  • Author(s): 稲葉匡司，矢野 猛
  • Organizer: 日本流体力学会 年会2015
  • Place of Presentation: 東京工業大学 大岡山キャンパス
  • Year and Date: 2015-09-26
• [Presentation] 線形化されたES-BGKモデルに関する非定常な蒸発・凝縮をともなう半無限境界値問題 (2014)
  • Author(s): 稲葉 匡司，矢野 猛
  • Organizer: 日本流体力学会 年会2014
  • Place of Presentation: 東北大学，仙台
  • Year and Date: 2014-09-15 – 2014-09-17
• [Presentation] Half-space problem for linearized ES-BGK model equation with unsteady evaporation and condensation flows (2014)
  • Author(s): Masashi Inaba and Takeru Yano
  • Organizer: 29th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Xi'an, China
  • Year and Date: 2014-07-13 – 2014-07-18
• [Presentation] Half-space Problem for Linearized ES-BGK Model Equation with Unsteady Evaporation and Condensation Flows (2014)
  • Author(s): Masashi Inaba and Takeru Yano
  • Organizer: 29th International Symposium on Rarefied Gas Dynamics
  • Place of Presentation: Xi'an, China