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归纳和整理了现有环形扩压器性能分析模型,并将模型预测结果与若干种环形扩压器性能实验数据进行了比较,结果表明模型预测结果与对应实验数据一致性还是比较好的。在此基础上,应用所发展模型对某大涵道比涡扇发动机高/低压涡轮过渡流道环形扩压器进行了优化设计,最终获得的过渡流道环形扩压器性能指标与拟达到的性能指标比较符合,进一步表明了所给模型作为初步的涡轮机中环形扩压器设计设计与性能分析模型是可行的。
The performance analysis model of the existing toroidal diffuser was summarized and compared. The results of the model predictions were compared with several experimental data of toroidal diffuser performance. The results show that the consistency between the model predictions and the corresponding experimental data is good. On this basis, the developed model was used to optimize the design of annular diffuser of high / low turbocharged turbulence passage for a large bypass ratio turbofan engine. Finally, the performance index of the annular diffuser for transitional passage was compared with that to be achieved The performance indexes are in good agreement with each other, further demonstrating that the proposed model is feasible as a preliminary design and performance analysis model for annular diffuser in turbines.