基于脉管制冷机的二维可压缩流动数值计算程序的开发与应用

THE DEVELOPMENT AND APPLICATION OF A TWO-DIMENSIONAL CALCULATION PROCEDU谽 FOR COMPRESSIBLE FLOW IN THE PULSE TULSE REFRIGERATOR

本文在SIMPLEC计算程序的基础上,开发了适用于各种流动Mach的计算程序,既能用于计算不可压缩流体,又可以计算可压缩流动。利用此程序计算了一些典型算例,和有关文献结果符合较好。最后利用可压缩程序计算了小孔型脉管制冷机当小孔处于最佳开度时小孔处的气流分布。

In this paper, the program for solving viscous flow problems at all Mach numbers was developed based on the SIMPLEC algorithm, using the compressible form. It holds for not only compressible but also incompressible flow problems. Some typical compressible examples were calculated with the program, and the numerical results agreed well with the related literature and experimental data. Finally, the calculated velocity distribution at the orifice of the orifice pulse tube refrigerator was presented at the condition of the optimum opening of the orifice.