Ling Hong, Luo Ercang, Dai Wei
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Ultrasonics. 2006 Dec 22;44 Suppl 1:e1511-4. doi: 10.1016/j.ultras.2006.08.007. Epub 2006 Sep 7.
Thermoacoustic prime movers can generate pressure oscillation without any moving parts on self-excited thermoacoustic effect. The details of the numerical simulation methodology for thermoacoustic engines are presented in the paper. First, a four-port network method is used to build the transcendental equation of complex frequency as a criterion to judge if temperature distribution of the whole thermoacoustic system is correct for the case with given heating power. Then, the numerical simulation of a thermoacoustic-Stirling heat engine is carried out. It is proved that the numerical simulation code can run robustly and output what one is interested in. Finally, the calculated results are compared with the experiments of the thermoacoustic-Stirling heat engine (TASHE). It shows that the numerical simulation can agrees with the experimental results with acceptable accuracy.
热声原动机可以基于自激热声效应在没有任何运动部件的情况下产生压力振荡。本文介绍了热声发动机数值模拟方法的细节。首先，使用四端口网络方法建立复频的超越方程，作为判断在给定加热功率情况下整个热声系统温度分布是否正确的标准。然后，对热声斯特林热机进行数值模拟。结果表明，该数值模拟代码能够稳定运行并输出感兴趣的结果。最后，将计算结果与热声斯特林热机（TASHE）的实验结果进行比较。结果表明，数值模拟能够在可接受的精度范围内与实验结果相符。
