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이현창(Hyunchang Lee),김해솔(Haisol Kim),조성호(Seongho Cho),성홍계(Hong-Gye Sung),윤영빈(Youngbin Yoon) 한국추진공학회 2018 한국추진공학회지 Vol.22 No.1
Temperatures of cryogenic nitrogen jet inside an injector and at three different downstream positions (0.9, 10.6, and 28.1d) were measured with thermocouples in sub- and supercritical states. The jet temperature decreased while cooling the supply line and injector. The jet experienced from flash boiling, boiling and then no boiling according to decreasing temperature. As an analogy to flash-boiling at the subcritical state, pseudo-flash boiling has been assumed considering the existence of pseudo-boiling at the supercritical state. By showing an area where the temperature did not increase downstream, the plausibility of pseudo-flash boiling is proposed.