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

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，我研究了颗粒材料物理学，作为耗散粒子统计动力学的主题。该项目包括从时间反演对称性动力学中研究耗散的起源。因此，该项目可以被视为非平衡统计力学的一部分。我几乎完成了（1）弹性粒子的接触与非弹性碰撞：耗散的起源是什么？，（2）稀薄的热传导问题气体：非平衡稳态的边界层分析和统计力学，（3）晶格上的不对称简单排除过程（ASEP）统计力学研究，（5）本项目内颗粒流的功率谱。此外，我还在继续研究微重力环境下颗粒气体的实验设计及其相应的颗粒模拟、颗粒剪切流理论、介观系统非弹性碰撞理论与模拟。借助这个研究项目的成果，我想继续进行“非平衡统计力学的动力学方法”的研究。

项目成果

Theory of the Inelastic Impact of Elastic Materials

• DOI: 10.1080/01411590410001690936
• 发表时间: 2003-11
• 期刊: Phase Transitions
• 影响因子: 1.6
• 作者: H. Hayakawa;H. Kuninaka

早川尚男: "散逸粒子系の力学"岩波書店. 109 (2003)

早川奈绪：“耗散粒子系统的力学”岩波书店 109 (2003)。

Kinetic Theory of dilute gases under nonequilibrium conditions

非平衡条件下稀气体的动力学理论

• 发表时间: 2005
• 期刊: Transport Theory and Statistical Physics (印刷中)
• 作者: H.Hayakawa;T-H.Nishino;Kim Heyon-Deuk
• 通讯作者: Kim Heyon-Deuk

Non-Gaussian velocity distribution function in a vibrating granular bed

• DOI: 10.1143/jpsj.73.2037
• 发表时间: 2004-08-01
• 期刊: JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
• 影响因子: 1.7
• 作者: Kawarada, A;Hayakawa, H
• 通讯作者: Hayakawa, H

Theory of ω^{-4/3}law of the power spectrum in dissipative flows

耗散流功率谱 ω^{-4/3} 定律理论

• 发表时间: 2005
• 期刊: Phys.Rev.E vol.72
• 作者: Tetsuya Mitsudo;Hisao Hayakawa;Hisao Hayakawa
• 通讯作者: Hisao Hayakawa