中文摘要：

本文选用性能较好的设计点马赫6三楔压缩二维进气道为基准模型,精心设计了设计点马赫6性能与基准模型相当,采用等压力梯度曲面压缩的二维进气道。数值模拟分析了两进气道在非设计点和非均匀来流下的流场和性能。结果表明：非设计点,采用等压力梯度曲面压缩二维进气道,其流量系数、总压恢复和压比均高于三楔压缩二维进气道;在非均匀来流下,采用等压力梯度曲面压缩二维进气道比基准进气道性能要好,低马赫数下起动性能也较好,值得进一步研究。

英文摘要：

The well-designed constant pressure gradient curved compression 2D inlet model at design point Mach number 6 was conducted,and the inlet performance is similar with a three wedges compression 2D inlet at design point Mach number 6.The two inlets flow fields and performance in uniform and non-uniform inflow are discussed by using numerical simulation.The results show that,at off-design point Mach number,the curved compression 2D inlet model gets a higher mass capture ratio,total pressure recovery and pressure ratio;in non-uniform inflow,the curved compression 2D inlet model is of better performance and easy starting in lower Mach number inflow.So further investigation will be continued.