摘要
本文由基本的守恒方程出发,获得了能描述回热器存在声直流时的非线性动力学模型及由此而导致的非线性时均热力学效应。根据所得到的模型,考察了声直流对临界声功产生率温度梯度、回热器温度分布以及脉冲管制冷性能的影响。
Based on basic conservation equations, the paper derived the thermoacoustic streaming model of a cyclic regenerator and discussed some nonlinear, time-averaged thermodynamic effects. Ac-cording to the model, the paper analyzed the critical temperature gradient of acoustic work generation for a thermoacoustic prime mover, the temperature distribution of a regenerator and the refrigeration capacity for a pulse tube refrigerator by thermoacoustic streaming effects.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2002年第4期429-432,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.59976044)
关键词
回热器
声直流
非线性效应
regenerator
thermoacoustic streaming
nonlinear effect