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采用压升规律可控的轴对称基准流场,结合流线追踪及截面渐变等技术设计了类水滴进口转圆形出口高超内收缩进气道构型,在设计点和接力点进行了数值模拟,并和设计参数相同的矩形转圆形内收缩进气道进行了比较.结果表明:设计点和接力点两者总体性能相当,类水滴进口进气道出口流场较均匀,并且具有更好的起动性能.此外,类水滴进口的几何非对称性造成了进气道整个流场结构的非对称.
Adopting the axisymmetric reference flow field which can control the pressure rise law, this paper designs the super-converging inlet structure of the round outlet with the droplet inlet and the cross section gradient. The numerical simulation is carried out at the design point and the relay point The results show that the overall performance of the design point and the relay point are the same and the flow field at the inlet of the water droplet inlet is more uniform and has better performance Of the starting performance.In addition, the geometric asymmetry of the water droplet inlet caused the inlet flow asymmetry of the entire flow field structure.