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随着对吸附式低反动度轴流压气机内部流动细节的逐步深入,进一步完善了多级吸附式低反动度轴流压气机气动设计思想,完成了3级吸附式低反动度轴流压气机气动设计.三维黏性的数值计算结果表明:在第1级动叶入口叶尖切线速度为370m/s的前提下,通过只在首级静叶和末级静叶中进行附面层抽吸,实现了总压比为6.1的3级吸附式低反动度轴流压气机气动设计.附面层总抽吸流量占入口流量的11.3%.在不考虑附面层抽吸对流动效率影响的前提下,3级效率达到88.1%.
With the gradual deepening of the internal flow details of the adsorption-type low-reactivity axial-flow compressor, the aerodynamic design concept of a multi-stage adsorption-type low-reverse-flow axial-flow compressor is further improved and the 3-stage adsorption low-reverse-flow axial compressor The results of numerical calculation of three-dimensional viscous performance show that under the premise of the tangential speed of the tip of the first stage moving blade being 370m / s, , The pneumatic design of 3-stage adsorption low-reverse-flow axial-flow compressor with a total pressure ratio of 6.1 was achieved, and the total suction flow rate of the overburden accounted for 11.3% of the inlet flow rate.Without considering the influence of the suction on the flow efficiency Under the premise, Level 3 efficiency reached 88.1%.