Flow-induced Noise Simulation Based on LES/Lighthill Hybrid Method

被引：3
|
作者：
Zhang, YongOu [1 ,2 ]
Zhang, Tao [1 ,2 ]
Li, TianYun [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Wuhan 430074, Peoples R China
[2] Hubei Key Lab Naval Architecture & Ocean Engn Hyd, Wuhan 430074, Peoples R China
来源：
INTERNATIONAL CONFERENCE MACHINERY, ELECTRONICS AND CONTROL SIMULATION | 2014年 / 614卷
关键词：
Flow-induced noise; Large Eddy Simulation; Lighthill's acoustic analogy; ACTRAN; Valve; Cavity;
D O I：
10.4028/www.scientific.net/AMM.614.428
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A hybrid numerical method of combining Large Eddy Simulation (LES) and Lighthill's acoustic analogy theory is utilized to simulate the flow-induced noise at low Mach numbers. The aerodynamic noise generated by flow through a cavity, which is similar to a valve, is simulated and the results are validated by comparing with the open literature. In the simulation, the turbulent flow is computed with LES. After this, the flow field simulation results are used to compute the flow-induced noise with Lighthill's acoustic analogy theory based on the commercial software ACTRAN. Finally, the simulation results of the flow-induced noise, including the sound pressure level and the peak frequencies, are analyzed and compared with experimental data. It is validated that the hybrid method of combining LES and Lighthill's acoustic analogy theory used in this paper is feasible and reliable in engineering applications.
引用
收藏
页码：428 / 431
页数：4
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