吸附式压气机的研究进展综述

Review on Research Progress of Aspirated Compressor

为进一步提高吸气技术在压气机中的应用效果,对压气机中应用吸气的相关研究进行调研和总结。吸气位置对吸气效果产生直接影响,吸气效果受吸气位置、吸气量和吸气布置方式等多个因素影响,合理地吸气可有效控制压气机内部的流动分离结构,对激波、失速裕度也可产生有效影响,使损失降低、效率提高;吸气策略不同造成吸气效果和吸气机理存在差异,不同策略的吸气对流场结构和流动特性的影响也不同;联合控制方法、耦合叶片外形设计与吸气策略设计可进一步提高吸气压气机性能。未来可对联合控制方法的优化进行深入研究,考虑级间匹配、级间干涉作用、非均匀流动和非定常流动现象等,对吸气效率的评估应制定统一标准。

In order to further improve the effect of suction technology applied in compressor and guide the future optimization design and efficient study,the research on the application of suction in compressor is surveyed and summarized.Inspiratory position has direct influence,and inspiratory effect is affected by inspiratory position,quantity and arrangement.Proper inspirations can effectively control the separation structure in compressor and have an effective effect on the shock wave and stall margin,so as to reduce the loss and improve the efficiency.Different inspiratory strategies lead to different inspiratory effects and different inspiratory mechanisms,and the effects of different inspiratory strategies on the flow field structure and flow characteristics are also different.Joint control method and the coupling of blade profile design and suction strategy design can further improve the performance of the suction compressor.In the future,the optimization of joint control method can be further studied.Considering stage matching,stage interference,non-uniform and unsteady flow phenomena,a unified standard should be established for the evaluation of inspiratory efficiency.