Affiliation of Author(s):能源与动力学院
Journal:Tuijin Jishu
Abstract:To explore performance potential of hypersonic curved shock compression, high performance curved shock compression design results were obtained through multi-objective optimization and sampling computation, and were compared with traditional compression, under both inviscid and viscous condition. The results show that, (1)under inviscid condition, in the Pareto solutions of Multi-objective optimization, there exist curved shock compression cases, which have shorter length, higher compression efficiency and higher mass capture ratio under low flight Mach number, than traditional equal shock strength three ramps compression; (2)under viscous condition, when pressure ratio is 8.29(1±0.5%), compared with isentropic compression, the length of curved compression is 35% shorter; compared with traditional equal shock strength three ramps compression, the length of curved compression is 8% shorter, the total pressure ratio is approximately equal, and the mass capture ratio under flight Mach number of 4 is 6% higher; compared with ramp-isentropic compression, the total pressure ratio of curved compression is 1.1% lower, while the mass capture ratio under flight Mach number of 4 is 6% higher; outlet boundary layer thickness and shape factor of curved shock compression are lower than those of other compression methods. © 2017, Editorial Department of Journal of Propulsion Technology. All right reserved.
ISSN No.:1001-4055
Translation or Not:no
Date of Publication:2017-04-01
Co-author:XT21373,Su Wei-Yi,jzg
Correspondence Author:王蕾
Date of Publication:2017-04-01