Volume 8, Issue 5
Aeroacoustic Simulations Using Compressible Lattice Boltzmann Method

Kai Li & Chengwen Zhong

Adv. Appl. Math. Mech., 8 (2016), pp. 795-809.

Published online: 2018-05

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  • Abstract

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 doubledistribution-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.

  • Keywords

Lattice Boltzmann method, compressible flow, double-distribution-function, direct numerical simulation, aeroacoustics.

  • AMS Subject Headings

65M10, 78A48

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{AAMM-8-795, author = {}, title = {Aeroacoustic Simulations Using Compressible Lattice Boltzmann Method}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2018}, volume = {8}, number = {5}, pages = {795--809}, abstract = {

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 doubledistribution-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.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.2015.m1083}, url = {http://global-sci.org/intro/article_detail/aamm/12117.html} }
TY - JOUR T1 - Aeroacoustic Simulations Using Compressible Lattice Boltzmann Method JO - Advances in Applied Mathematics and Mechanics VL - 5 SP - 795 EP - 809 PY - 2018 DA - 2018/05 SN - 8 DO - http://dor.org/10.4208/aamm.2015.m1083 UR - https://global-sci.org/intro/aamm/12117.html KW - Lattice Boltzmann method, compressible flow, double-distribution-function, direct numerical simulation, aeroacoustics. AB -

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 doubledistribution-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.

Kai Li & Chengwen Zhong. (2020). Aeroacoustic Simulations Using Compressible Lattice Boltzmann Method. Advances in Applied Mathematics and Mechanics. 8 (5). 795-809. doi:10.4208/aamm.2015.m1083
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