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，我研究的是颗粒材料的物理，作为耗散粒子的统计动力学的一个课题。本项目包括时间反转对称动力学耗散起源的研究。因此，该工程可视为非平衡统计力学的一部分。我几乎完成了(1)弹性粒子的接触和非弹性碰撞：耗散的起源是什么？(2)稀薄气体的热传导问题：非平衡稳态的边界层分析和统计力学；(3)格上不对称简单不相容过程（ASEP）的统计力学研究；(5)本项目颗粒流的功率谱。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颗粒模拟、颗粒剪切流动理论、细观系统非弹性碰撞理论与模拟。借助这个项目的研究成果，我想继续“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

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

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)。

Contact and quasi-static impact of a dissipationless mechanical model

无耗散机械模型的接触和准静态冲击

• 发表时间: 2006
• 期刊: Journal of Physical Society of Japan (印刷中)
• 作者: Hiroto Kuninaka;Hisao Hayakawa
• 通讯作者: Hisao Hayakawa

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