This paper investigates the relationship between drag coefficient and the Mach number after distortion net and reveals the mechanisms of the rapid increase in total pressure loss when the upstream mach number exceeds the critical mach number based on CFD simulation.The results show that the normal shock wave and oblique shock wave occur in the flow field and result in the rapid increase in total pressure loss when upstream Mach number is beyond the critical Mach number.The critical condition occurs at lower inlet Mach number when the solidity of cylinder increases because the throat reaches the acoustic speed and oblique shock wave emerges in the diffuser part.
ZHANG Sheng, REN Wen-cheng, TU Bao-feng, DING Yi-ming
. CFD numerical simulating investigation on distortion net[J]. Journal of Shenyang Aerospace University, 2013
, 30(5)
: 27
-32
.
DOI: 10.3969/j.issn.2095-1248.2013.05.006
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