基于涨落耗散理论的能量本征态规范研究  

Research on Energy Eigenstate Specification Based on Fluctuation Dissipation Theorem

作　　者：郭凯 GUO Kai(Huaneng Wuhan Power Generation Co.,Ltd.,Wuhan Hubei 430415,China)

机构地区：[1]华能武汉发电有限责任公司,湖北武汉430415

出　　处：《湖北电力》2021年第4期106-110,共5页Hubei Electric Power

摘　　要：涨落、弛豫和输运(耗散)是微观粒子接近平衡态时的主要非平衡过程。这3个非平衡过程是由趋于平衡的倾向决定,存在一些深刻的内在联系。在宏观上,如果处在平衡态的系统受到短暂的小扰动,系统将会偏离平衡;如果扰动取消,其回到平衡的弛豫过程应是相同的,这由系统的内部性质决定,而与偏离平衡的开始原因无关。因此,涨落、弛豫以及输运的系数都可以采用平衡态的物理量进行描述,而涨落耗散理论围绕系统平衡态的涨落、弛豫与输运过程性质之间的关系,是描述这三个物理过程在平衡系统与非平衡系统之间变化关系的理论。对涨落耗散理论在宏观中的应用进行了深入的探讨,并为后续研究工作提供一定的参考。Fluctuation,relaxation and transport(dissipation)are the main non-equilibrium processes when microscopic particles approach equilibrium state.These three non-equilibrium processes are determined by the tendency towards equilibrium and have some deep internal relations between them.Macroscopically,if a system in equilibrium is subjected to a small transient disturbance,the system will deviate from equilibrium;if the disturbance is cancelled,the relaxation process of its return to equilibrium should be the same,which is determined by the internal nature of the system,having nothing to do with the initial cause of deviation from equilibrium.Therefore,the coefficients of fluctuation,relaxation and transport can be described by physical quantities of equilibrium state,while the fluctuation dissipation theory focuses on the relationship between fluctuation,relaxation and transport process properties of the system equilibrium state,and is a theory describing the relationship between the three physical processes in equilibrium system and non-equilibrium system.This paper makes a in-depth discussion on the application of fluctuation dissipation theory in macroscopical research,providing some references for the follow-up research work.

关 键 词：涨落 弛豫 耗散 平衡态 

分 类 号：TK121[动力工程及工程热物理—工程热物理]