Effects of blade bowing on the performance of a high pressure-ratio turbocharger centrifugal compressor with self-recirculation casing treatment  

作　　者：ZHENG XinQian LAN ChuanJie 

机构地区：[1]State Key Laboratory of Automotive Safety and Energy, Tsinghua University

出　　处：《Science China(Technological Sciences)》2013年第10期2531-2539,共9页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.51176087)

摘　　要：The effects of blade bowing on the performance of a high pressure-ratio turbocharger centrifugal compressor were studied by experiments and numerical simulation.The results showed that the negative bowing was capable of increasing the choke mass rate and the efficiency but decreased the surge mass flow rate,while the positive bowing had the opposite effects.When coupling with the self-recirculation casing treatment,the surge mass flow rate of the compressor with negative bowing blade was almost identical with that of the prototype,while the choke mass flow rate was still larger,and the total effect contributed to an increase of the stable flow range by 5.85%at design speed.Besides,the flow mechanism of the coupling effects of blade bowing and self-recirculation casing treatment was discussed.

关 键 词：blade bowing self-recirculation casing treatment high pressure ratio TURBOCHARGER centrifugal compressor 

分 类 号：TH452[机械工程—机械制造及自动化] V231.3[航空宇航科学与技术—航空宇航推进理论与工程]