Fundamental research on dynamics of dissipative particles

耗散粒子动力学基础研究

• 批准号: 15540393
• 负责人: HAYAKAWA Hisao
• 金额: $ 2.24万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15540393/
• 关键词: granular gas; inelastic collision; kinetic theory of gases; boundary layer analysis; molecular dynamics simulation; rheology; flight experiment(micro-g); 散逸粒子系; 微小重力; クーロン摩擦; パワースペクトル; ASEP; 気体分子運動; はね返り係数; 散逸粒子系の力学; 非弾性気体; granular gas; inelastic collision; kinetic theory of gases; boundary layer analysis; molecular dynamics simulation; rheology; flight experiment(micro-g); 散逸粒子系; 微小重力; クーロン摩擦; パワースペクトル; ASEP; 気体分子運動; はね返り係数; 散逸粒子系の力学; 非弾性気体

In this research project, I have studied physics of granular materials as a subject of statistical dynamics of dissipative particles. This project includes the research of the origin of dissipation from the dynamics of time-reversal symmetry. Thus, the project can be regarded as a part of non-equilibrium statistical mechanics.I have almost completed (1)contact and inelastic collisions of elastic particles : what is the origin of dissipation?, (2)the problem of heat conduction of rarefied gases : the boundary layer analysis and statistical mechanics of non-equilibrium steady state, (3)the study on statistical mechanics of asymmetric simple exclusion processes (ASEP) on lattices, (5)power spectra of granular flows within this project. In addition, I am also still continuing research on an experimental design of granular gases in a micro-gravity environment and its corresponding simulation of granular particles, theory of granular shear flow, and the theory and simulation of inelastic collisions in mesocopic systems. With the aid of the results of this research project, I would like to continue the research on "kinetic approach to nonequilibrium statistical mechanics".

在这个研究项目中，我研究了颗粒材料的物理学，作为耗散颗粒的统计动力学主题。该项目包括从时间反向对称性的动力学来研究耗散的起源。因此，该项目可以被视为非平衡统计力学的一部分。我几乎完成（1）弹性颗粒的接触和非弹性碰撞：耗散的起源是什么？ （5）该项目中粒状流的功率光谱。此外，我仍在继续研究微块环境中颗粒气体的实验设计及其对颗粒颗粒的相应模拟，颗粒状剪切流的理论以及中介系统中无弹性碰撞的理论和模拟。借助该研究项目的结果，我想继续研究“非平衡统计力学方法”。