纳米水平热量传输中温度定义的讨论  

Discussion of the Definitions of Temperature in the Process of Heat Transfer at Nano-scale

作　　者：张红雨 徐明智[1] 李迎新[1] 顾汉卿[2] 

机构地区：[1]天津医科大学生物医学工程系激光医学实验室,天津300070 [2]天津市泌尿外科研究所生物医学工程研究室,天津300211

出　　处：《纳米科技》2006年第1期11-13,共3页

摘　　要：纳米水平热量传输明显不同于宏观和微观系统的热量传输。由于热量携带子——电子、光子、声子或分子的平均自由行程与被研究物体的特征长度之间具有可比性，经典理论已经不再适用，人们必须采用新的理论来预测纳米水平的热量传输。在许多仿真模型的研究中存在对温度定义的分歧，因此出现不同的研究结论。针对于在仿真模型研究中可能出现的有关温度的定义给出了明确阐述。Heat transfer at nano-scale may differ significantly from that in macro-scale and micro-scale. With structure characteristic length scales becoming comparable to the mean free path and wavelength of heat carriers such as electrons, photons, phonons and molecules, classical laws are no valid and new approaches must be taken to predict heat transfer at nano-scale. There are differences which lead to different results in many simulations, aiming at the specific definitions of temperature that might appear in the research of many simulation models, the interpret is given.

关 键 词：纳米水平热量传输 分子动力学方法 温度 

分 类 号：O4[理学—物理] O313