A novel design of impeller cavity pre-swirl system for efficient supercharging and low power consumption

被引：0

作者：

Lian, Wenlei ^{[1
,2
]}

Zhu, Yu ^{[1
,2
]}

Chen, Xiaoming ^{[1
,2
]}

Zhou, Zhixiang ^{[1
,2
]}

Huang, Yong ^{[1
,2
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Nanjing 210000, Peoples R China

[2] AECC Hunan Aviat Powerplant Res Inst, Zhuzhou 41200, Peoples R China

来源：

INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES | 2024年 / 41卷 / 01期

关键词：

flow characteristics; impeller; power consumption; pre-swirl system; pressure ratio;

D O I：

10.1515/tjj-2022-0038

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A design for a turbine pre-swirl system with impeller cavity is proposed to improve the quality of cooling air supplied to the turbine blades of an aeroengine. Impeller cavity is analyzed in order to increase the system pressure ratio with a low system power consumption at the system outlet. Theoretical and numerical investigation are used to investigate the flow characteristics in an impeller cavity pre-swirl system. The conclusions in this study indicate that the impeller structure can increases the pressure ratio by changing the power consumption and distribution of the absolute velocity in the impeller cavity and system outlet. To obtain high pressure ratio and low power consumption, the impeller should have a structure with a high outlet installation radius and low outlet angle. The highest increase in the pressure ratio compared with the empty cavity pre-swirl system is 6.4% and the corresponding increase in the power consumption is 2620 W.

引用

页码：111 / 125

页数：15

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