Application of Proper Orthogonal Decomposition Method in Unsteady Flow Field Analysis of Axial High Bypass Fan

被引：0
|
作者：
Zhang, Kai [1 ]
Wang, A. J. [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Mech Egnineering, 800 Dongchuan Rd, Shanghai 200240, Peoples R China
来源：
INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES | 2022年 / 39卷 / 04期
关键词：
fan; proper orthogonal decomposition; engine; high bypass ratio 47; 85; Gj; COHERENT STRUCTURES; TURBULENCE; CYLINDER; WAKE; POD;
D O I：
10.1515/tjj-2020-0002
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The main purpose of this paper is to analyze the characteristics of the flow field in fan rotor. Nowadays the twisted and swept fan is the representative work of the forefront of aerospace engines. The tip clearance flow field can have a large impact on fan rotor performance. This article describes and uses the throttle method to obtain near stall condition. Near stall condition value simulation of the transonic fan rotor was carried out by CFX. The Proper Orthogonal Decomposition method was applied to the tip flow-field analysis. The main structure of the flow field can be distinguished by Proper Orthogonal Decomposition method. Then the flow structure is sorted according to energy. Disturbing fine flow structures can also be captured. This provides a comparative reference for flow field visualization. It also provides important data for the design of the fan.
引用
收藏
页码：533 / 540
页数：8
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