Transverse Temperature Distribution inside Micro-channel of Thermo-acoustic Regenerator
By means of the reciprocating motion of the oscillating flow the temperature gradient superimposed on the solid matrix was modulated into transverse thermal wave(temperature wave).It results in the periodic heat exchange between solid matrix and the oscillating flow.The transverse thermal wave generated by diffusion and wave is of dual nature of the diffusion and wave.The purpose of this paper is to investigate the transverse temperature distribution inside the micro-channel of a thermoacoustic regenerator (or a stack) based on the wave theory. The velocity field and the transverse temperature field of the system are analyzed by means of solving the governing equations for the flow. The temperature field which can be taken as complex has the wave characteristic. The influence of the system construction and the penetration depth on both the real part and the imaginary part of temperature field is studied.The irreversible model established in the paper reveals the boundary layer effects of the viscosity and thermal conduction.The results obtained herein may be useful for the understanding of thermoacoustic effect mechanism.
Wu F Kan X X Yu S C Li D Y E Q Wu K
School of Science,Wuhan Institute of Technology,Wuhan 430073,P.R.China Naval University of Engineering,Wuhan 430033,P.R.China
国际会议
上海
英文
181-183
2008-04-05（万方平台首次上网日期，不代表论文的发表时间）