分形介质声子导热的频域问题  

FREQUENCY BAND OF PHONONS CONDUCTING HEAT IN FRACTAL MEDIA

作　　者：杨善让[1] 徐志明[1] 王建国[1] 关信 王国徽 

机构地区：[1]东北电力学院动力工程系,吉林吉林132012

出　　处：《工程热物理学报》2000年第4期475-478,共4页Journal of Engineering Thermophysics

基　　金：国家电力公司资助!SPKJ013-07;东北电力学院科研基金

摘　　要：本文论证了分形介质中声子导热的必要条件，给出了分形介质定容比热的频域。结果表明，同一材料的分形介质定容比热恒小于均匀介质的定容比热。This paper decusses the necessary condition under which the phonons conduct the heat in a fractal medium and deduces the frequency band of the specific heat capacity at constant volume in this kind of medium. The results show that the specific heat capacity at constant volume in a fractal medium is always less than that in a homogenous medium.

关 键 词：分形介质 声子导热条件 频域 定容比热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]