Hostname: page-component-7b7567c8c-tnzcf Total loading time: 0 Render date: 2026-11-15T00:33:05.597Z Has data issue: false hasContentIssue false

Aeroacoustic Simulations Using Compressible Lattice Boltzmann Method

Published online by Cambridge University Press:  08 July 2016

Kai Li*
Affiliation:
National Key Laboratory of Science and Technology on Aerodynamic Design and Research, Northwestern Polytechnical University, Xi'an 710072, China
Chengwen Zhong*
Affiliation:
National Key Laboratory of Science and Technology on Aerodynamic Design and Research, Northwestern Polytechnical University, Xi'an 710072, China
*
*Corresponding author. Email:lik@mail.nwpu.edu.cn (K. Li), zhongcw@nwpu.edu.cn (C.W. Zhong)
*Corresponding author. Email:lik@mail.nwpu.edu.cn (K. Li), zhongcw@nwpu.edu.cn (C.W. Zhong)

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

This paper presents a lattice Boltzmann (LB) method based study aimed at numerical simulation of aeroacoustic phenomenon in flows around a symmetric obstacle. To simulate the compressible flow accurately, a potential energy double-distribution-function (DDF) lattice Boltzmann method is used over the entire computational domain from the near to far fields. The buffer zone and absorbing boundary condition is employed to eliminate the non-physical reflecting. Through the direct numerical simulation, the flow around a circular cylinder at Re=150, M=0.2 and the flow around a NACA0012 airfoil at Re=10000, M=0.8, α=0° are investigated. The generation and propagation of the sound produced by the vortex shedding are reappeared clearly. The obtained results increase our understanding of the characteristic features of the aeroacoustic sound.

MSC classification

Information

Type
Research Article
Copyright
Copyright © Global-Science Press 2016