Simulation Research on Flow Characteristics of Transonic Centrifugal Compressor with Double Splitter

LIU Guisheng; TONG Ding; LI Guangrui; LI Jingjing; HOU Linlin; HUA Lin; ZHUANG Li

doi:10.3969/j.issn.1001-2222.2020.05.006

Vehicle Engine >

2020 , Vol. 0 >Issue 5: 36 - 40

DOI: https://doi.org/10.3969/j.issn.1001-2222.2020.05.006

Simulation Research on Flow Characteristics of Transonic Centrifugal Compressor with Double Splitter

LIU Guisheng ,
TONG Ding ,
LI Guangrui ,
LI Jingjing ,
HOU Linlin ,
HUA Lin ,
ZHUANG Li

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(National Key Laboratory of Diesel Engine Turbocharging Technology,China North Engine Research Institute,Tianjin 300400,China)

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Abstract

The internal flow characteristics of impeller with double splitters were simulated in order to strengthen the performance of compressor based on a high pressure and transonic centrifugal impeller. The results show that the use of double splitter can improve the flow state at chocking point and decrease the shock wave intensity and main blade loading. With the increase of rotational speed, the pressure ratio of compressor increases obviously. Under the constraint of blade number, two kinds of impellers with double splitter have their own characteristics. Accordingly, the results can provide a new idea for the optimization of high pressure ratio centrifugal compressor.

Key words： centrifugal compressor; double splitter; simulation; flow distribution

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LIU Guisheng , TONG Ding , LI Guangrui , LI Jingjing , HOU Linlin , HUA Lin , ZHUANG Li . Simulation Research on Flow Characteristics of Transonic Centrifugal Compressor with Double Splitter[J]. Vehicle Engine, 2020 , 0(5) : 36 -40 . DOI: 10.3969/j.issn.1001-2222.2020.05.006

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