中文摘要：

为了探索弯曲激波压缩流场性能所能达到的范围,分别在无粘和粘性条件下,通过多目标优化设计和抽样计算获取了高性能弯曲激波压缩方案,并与传统的压缩方式进行了对比。研究结果表明：（1）无粘条件下流场多目标优化Pareto最优解集中存在长度、压缩效率、低马赫数流量系数等性能参数均优于等激波强度三楔压缩的方案;（2）粘性条件下压比均为8.29（1±0.5%）时,弯曲激波压缩流场与等熵压缩流场相比,长度缩短了35%;与等激波强度三楔压缩流场相比,长度缩短了8%,总压恢复系数大小相当,来流马赫数4时流量系数高6%;与斜楔-等熵压缩相比,总压恢复系数仅相差1.1%,而来流马赫数4时流量系数提高了6%;其出口截面附面层厚度、附面层形状因子均低于其他压缩方式。

英文摘要：

To explore performance potential of hypersonic curved shock compression, high performance curved shock compression design results were obtained through multi-objective optimization and sampling com- putation, and were compared with traditional compression, under both inviscid and viscous condition. The re- sults show that, （1） under inviscid condition, in the Pareto solutions of Multi-objective optimization, there ex- ist 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 com- pression, 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 compres- sion, the total pressure ratio of curved compression is 1.1% lower, while the mass capture ratio under flight Math number of 4 is 6% higher; outlet boundary layer thickness and shape factor of eurved shoek compression are lower than those of other compression methods.