Investigation of the unsteady flow of a transonic compressor using the nonlinear harmonic method

被引：3
|
作者：
Zhang, Peng [1 ]
Liu, Bo [1 ]
Shi, Lei [1 ]
Li, Jun [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Power & Energy, Xian 710129, Shaanxi, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING | 2016年 / 230卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Unsteady flow; transonic compressor; rotor-stator interaction; harmonic; deterministic stress; TURBOMACHINES; ROTOR;
D O I：
10.1177/0954410015606940
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
In this paper, the nonlinear harmonic method implemented in Fine/Turbo CFD code has been used to analyze the unsteady flow field in a transonic compressor. The numerical accuracy and computational efficiency of this method have been demonstrated by comparing its predictions with experimental data and conventional time-domain unsteady simulation for the test case. The rotor-stator interactions are studied in detail to improve the understanding of the flow physics involved. The deterministic stresses in the nonlinear harmonic method have also been compared to the time-domain unsteady postprocessing results to analyze distinct sources of unsteadiness. For the present case, the nonlinear harmonic method can not only capture the unsteady results satisfactorily, but also gain a significant computational advantage over conventional unsteady method.
引用
收藏
页码：1263 / 1272
页数：10
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