Development of nonlinear nonequilibrium fluid mechanics through comprehensive integration of molecular dynamics of vapor-liquid interface and molecular gas dynamics

汽液界面分子动力学与分子气体动力学综合集成非线性非平衡流体力学发展

• 批准号: 23246034
• 负责人: YANO Takeru
• 金额: $ 21.55万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23246034/
• 关键词: 流体力学; 分子動力学; 分子気体力学; 非平衡統計力学; 気液界面; 気液２相流; 蒸発・凝縮; 非平衡; 希薄気体力学; 非線形非平衡流体力学

The ultimate goal of this research is to break a new ground of nonlinear nonequilibrium fluid mechanics by a comprehensive integration of molecular dynamics at the vapor-liquid interface and molecular gas dynamics based on the theory of Boltzmann equation. To this end, we have performed several specific analyses: 1. General formulation of nonequilibrium unsteady vapor motions accompanied with evaporation or condensation at the interface; 2. Establishment of reciprocity among elemental relaxation and driven-flow problems for a rarefied gas; 3. Careful investigation of applicability of macroscopic fluid mechanics to some nano-scale flows.

本研究的最终目的是以Boltzmann方程为理论基础，将汽液界面分子动力学与分子气体动力学相结合，为非线性非平衡流体力学开辟新的天地。为此，我们进行了几个具体的分析：1.伴随着界面蒸发或冷凝的非平衡非定常蒸汽运动的一般公式；2.建立了稀薄气体的元素松弛和驱动流动问题之间的相互作用；3.仔细研究了宏观流体力学对某些纳米尺度流动的适用性。

项目成果

Measurements of the evaporation coefficient of water using sound resonance

利用声共振测量水的蒸发系数

• 发表时间: 2013
• 期刊: Proceedings of 8th World conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics
• 作者: Keisuke YAHATA;Etsuji OHMURA;Seiji SHIMIZU and Masanao MURAKAMI;I.Minami;菊井 渉悟・中村 寿・手塚 卓也・長谷川 進・丸田 薫;鳥居聡太;Shigeto Nakamura and Takeru Yano
• 通讯作者: Shigeto Nakamura and Takeru Yano

Numerical demonstration of the reciprocity among elemental relaxation and driven-flow problems for a rarefied gas in a channel

通道中稀薄气体的元素弛豫和驱动流问题之间的相互关系的数值演示

• 发表时间: 2012
• 期刊: Physics of Fluids
• 影响因子: 4.6
• 作者: Yuki Yamaguchi;Takahiro Sekino;Satoru Takahashi;Kiyoshi Takamasu;高橋裕基，手塚卓也，長谷川進，中村寿，丸田薫;志戸本祥;A.Suzuki;Shigeru Takata and Masashi Oishi
• 通讯作者: Shigeru Takata and Masashi Oishi

Linear theory of sound waves with evaporation and condensation

蒸发和凝结声波的线性理论

• 发表时间: 2012
• 期刊: Fluid Dynamics Research
• 影响因子: 1.5
• 作者: Masashi Inaba;Takeru Yano;and Masao Watanabe
• 通讯作者: and Masao Watanabe

Unsteady flows in Io's atmosphere caused by condensation and sublimation during and after eclipse : Numerical study based on a model Boltzmann equation

日食期间和日食之后由凝结和升华引起的木卫一大气中的不稳定流动：基于模型玻尔兹曼方程的数值研究

• 发表时间: 2012
• 期刊: Icarus
• 影响因子: 3.2
• 作者: Shingo Kosuge;Kazuo Aoki;and Takeshi Inoue;David B.Goldstein;and Philip L.Varghese
• 通讯作者: and Philip L.Varghese

Molecular dynamics study of instability of nano-liquid column

纳米液柱不稳定性的分子动力学研究

• 发表时间: 2013
• 作者: M.Inaba;T.Yano;M Watanabe;澤村翔太;Mami Yokoyama;Kazuo Takimiya;T. Aoki;Kaoru Maruta;深井俊道;Kazuo Takimiya;Kazu Okumura;Takeru Yano and Taichi Murakami
• 通讯作者: Takeru Yano and Taichi Murakami