The establishment of the foundation of molecular nonlinear acoustics and the resolution of mass, momentum and energy transports in microscales

分子非线性声学基础的建立以及微尺度质量、动量和能量传输的解析

• 批准号: 19360077
• 负责人: YANO Takeru
• 金额: $ 9.82万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19360077/
• 关键词: 流体力学; 非線形波動; 非平衡現象; 蒸発・凝縮; ボルツマン方程式; 非平衡統計力学; 分子動力学; 音響; 分子気体; 希薄気体; 非平衡; 非線形; 音波

It is important to investigate the mass, momentum, and energy transports for the understanding of nonlinear and nonequilibrium phenomena in fluid mechanics. To establish the foundation of the theory that addresses the abovementioned topics, i.e., molecular nonlinear acoustics, we have carried out several theoretical and numerical studies : (1) Asymptotic analysis of nonlinear resonant gas oscillation based on the Boltzmann equation. (2) Molecular dynamics study of equilibrium and nonequilibrium states of nano-droplet surrounded by its vapor. (3) Analysis of the effect of evaporation/condensation on the sound reflecting and transmitting a vapor-liquid interface.

研究质量、动量和能量传输对于理解流体力学中的非线性和非平衡现象非常重要。为了建立解决上述主题的理论基础，即分子非线性声学，我们进行了多项理论和数值研究：（1）基于玻尔兹曼方程的非线性共振气体振荡的渐近分析。 (2)蒸气包围的纳米液滴的平衡态和非平衡态的分子动力学研究。 (3)分析蒸发/冷凝对汽液界面声音反射和传播的影响。

项目成果

Condensation and Evaporation Induced by a Standing Sound Wave

驻声波引起的冷凝和蒸发

• 发表时间: 2007
• 期刊: Proceedings of the 6th International Conference on Multiphase Flow(Leipzig, Germany) (CD-ROM)
• 作者: Inaba;M.;Kobayashi;K.;Yano;T. and Fujikawa;S.
• 通讯作者: S.

Dependence of Saturated Vapor Pressure and Surface Tension Coefficient on Radius for an Argon Nano-droplet

氩纳米液滴的饱和蒸气压和表面张力系数对半径的依赖性

• 发表时间: 2008
• 期刊: Proceedings of XXII International Congress of Theoretical and Applied Mechanics
• 作者: Yaguchi;H.;Yano;T.;Fujikawa;S.
• 通讯作者: S.

Half-Space Problem of Gas Flows with Evaporation or Condensation on a Planar Interface with a General Boundary Condition

具有一般边界条件的平面界面上蒸发或凝结气体流动的半空间问题

• 发表时间: 2008
• 期刊: Fluid Dynamics Research (In press)
• 作者: Yaguchi;H.;Yano;T.;Fujikawa;S.;T. Yano
• 通讯作者: T. Yano

蒸発あるいは凝縮をともなう気体の流れ

蒸发或凝结的气流

• 发表时间: 2008
• 期刊: 生産と技術 60
• 作者: Huaqing Wang;Ke Li;Peng Chen;Shuming Wang;矢野猛
• 通讯作者: 矢野猛

Molecular dynamics of nonlinear and nonequilibrium effects in sound propagation.

声音传播中非线性和非平衡效应的分子动力学。

• 发表时间: 2010
• 作者: M. Inaba;K. Kobayashi;T. Yano;S. Fujikawa;T. Yano
• 通讯作者: T. Yano