Simulation of Sound Generation by Flow over a Cavity with the Lattice Boltzmann Method

摘要：

　　Aerodynamic noise is very common in the nature and the engineering.Lattice Boltzmann Method (LBM),which is based on the mesoscopic models,is a new CFD approach,and it has the congenital superiority and the inestimable development potential in the simulation of complex fluid flow.Referring to the experimental results provided by NASA/CP 2004-212954,the aerodynamic noise produced by the flow through a cavity is simulated by the lattice Boltzmann method.The results had vividly demonstrated the shear layer oscillations,the couple between the shear layer oscillations and cavity resonance pattern.The simulation showed that the shear layer oscillation is the main reason for the production of cavity aerodynamic noise.The simulation results are consistent with the NASA experiment data.

关键词： Aerodynamic Noise Lattice Boltzmann Method Cavity Shear Layer Oscillation

作者: Shanling Han Lisha Yu Guishen Wang Qingliang Zeng

作者单位: College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, P.R.China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Mechanical Engineering and Materials Engineering (机械工程与材料工程国际会议())

会议地点: 香港

会议语种:英文

页码: 456-459

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）