The flow fields of the impellers were calculated by solving three-dimensional Navier-Stokes equations. 对这两个离心压气机叶轮内部流场进行了三维粘性计算,给出了计算结果。
In this article, six kinds of reverse Brayton cycles of helium are studied analytically and the flow field of the header of their heat exchangers is simulated numerically. 本文正是基于上述考虑,选取了六种氦气逆布雷顿制冷循环模式,并对其进行了热力学分析,详细地讨论并对比了各个循环模式的用能情况,同时还对回路中采用的换热器封头内部流场进行了数值模拟。