Lattice Boltzmann simulation of acoustic resistance in microchannels

被引：5
|
作者：
Guan, Dong [1 ]
Wu, Jiu Hui [1 ]
Jing, Li [1 ]
Lu, Kuan [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2015年 / 29卷 / 16期
基金：
中国国家自然科学基金;
关键词：
Lattice Boltzmann method; acoustic resistance; attenuation; pressure variation; SOUND-ABSORPTION CHARACTERISTICS; BOUNDARY-CONDITIONS; BGK SIMULATION; FLOW; EQUATION; MEDIA; MODEL;
D O I：
10.1142/S0217979215501040
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Lattice Boltzmann method (LBM) is utilized to model the acoustic resistance in microchannels at mesoscopic scale in this paper. Sound pressure distribution at different positions are studied. A number of physical parameters, such as the wavelength, channel number, channel width and length are investigated to find their effects on pressure variation. Simulation results are compared with those obtained by traditional methods and demonstrate that the LBM is a helpful approach to study sound attenuation in microchannels at mesoscopic scale. These results have potential application for designing the high-efficiency sound absorbers.
引用
收藏
页数：14
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