Effects of Receiver Hole Shape on Air Flow in Pre-Swirl Air Supply System

被引：0
|
作者：
Zheng X.-T. [1 ]
Wang S.-F. [1 ]
Wei G.-L. [1 ]
机构：
[1] Key Laboratory of Aero-Engine Thermal Environment and Structure, Ministry of Industry and Information Technology, College of Energy and Power Engineering, Nanjing
来源：
Tuijin Jishu/Journal of Propulsion Technology | 2020年 / 41卷 / 10期
关键词：
Design; Pre-swirl system; Receiver holes; Temperature drop characteristics; Total pressure loss;
D O I：
10.13675/j.cnki.tjjs.190439
中图分类号：
学科分类号：
摘要：
In order to compare the airflow characteristics with different shape receiver holes, the pre-swirl system was studied by numerical simulation method. The results show that the inlet cross-section of the shrinkage receiver holes has a larger airflow area and a smaller airflow relative velocity, it is optimal in pre-swirl systems, followed by ladder-like, and the final is the straight hole type. With the same rotating Reynolds number, compared to the straight receiver holes, the dimensionless temperature drop of the shrinkage receiver holes increased by 5.8%. Simultaneously, the total pressure loss coefficient of the shrinkage receiver holes is reduced by 3.0%. For the three types of receiver holes, the dimensionless temperature drop and total pressure loss coefficient increase with the increase of the inlet and outlet pressure ratio. With the same pressure ratio, the shrinkage receiver holes has the largest dimensionless temperature drop and the lowest total pressure loss coefficient. © 2020, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码：2222 / 2227
页数：5
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