Stabilizing Flow Characteristics of a Centrifugal Compressor with Vane Casing Treatment

被引：0
|
作者：
Tian H. [1 ]
Hou K. [1 ]
Tong D. [2 ]
Liu X. [2 ]
Wang X. [2 ]
Zhao Y. [2 ]
机构：
[1] School of Mechanical Engineering, Hebei University of Technology, Tianjin
[2] China North Engine Research Institute, Tianjin
来源：
Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2023年 / 41卷 / 04期
关键词：
centrifugal compressor; high-pressure-ratio; numerical simulation; vane casing treatment;
D O I：
10.16236/j.cnki.nrjxb.202304042
中图分类号：
学科分类号：
摘要：
The turbocharging boost ratio of internal combustion engines is increasing with the requirements of power intensification and power recovery at high altitudes. High turbocharging technology has become one of the key technologies in advanced internal combustion engines area. The increase of the pressure ratio will lead to a sharp decrease in the stable working range and the efficiency of centrifugal compressor. The aerodynamic stability and working range expansion of the high-pressure-ratio centrifugal compressor become a core research area. In order to broaden the stable working range，a centrifugal compressor with blade casing was studied using numerical simulation to investigate the internal flow characteristics and stability mechanism. The blade form was optimized，and finally verified by experiments. The test results show that the optimized guide vane casing structure can effectively broaden the flow range of the high-pressure-ratio centrifugal compressor，and the surge flow range is expanded by 6%—8%. © 2023 Chinese Society for Internal Combustion Engines. All rights reserved.
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页码：361 / 368
页数：7
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