The other is that the critical pressure ratio in microchannels is different from that in macroflow greatly 本文将这一现象定义为亚堵塞现象,并将对应的压比定义为亚堵塞临界压比。
Better agreements between computation results and experimental data were found using the models . ( 4 ) two phenomena in straight-convergent-divergent-straight microchannels were identified, which are different from the macroflow through experimental studies . one is that the first appearing sonic point position in microchannels is not near throat cross-section (4)对等直收缩扩张等直微管道中气体流动的实验研究发现两个特异现象:其一为微管道内最早出现声速点的位置不一定在喉部附近,其二为微管道中的临界压比与常规值有很大差别。