Acoustic flows in viscous fluid: a lattice Boltzmann study
Acoustic flows in viscous fluid: a lattice Boltzmann study
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粘性流体中的声流：格子玻尔兹曼研究
DOI：
10.1002/fld.4045
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发表时间：
2015-10
影响因子：
1.8
通讯作者：
Ren Hu
中科院分区：
文献类型：
--
作者：
Chen Xiao-Peng;Ren Hu
Acoustic waves (or oscillating flows) cause both periodic flow and steady streaming around an obstacle. The nonlinear characteristic of such flows further induces acoustic radiation forces exerting on the surface of the obstacle, which is efficient to levitate or manipulate small partials. Two‐dimensional lattice Boltzmann methods are applied to simulate the flows around cylinders in acoustic standing waves with moderate viscosity. Multiple relaxation time model coupled with far‐field absorbing condition is applied. Our results show recirculating leading order flow in the Stokes layer with a characteristic velocity predicted by potential flow. The consequent Reynolds stresses induce two kinds of patterns of first‐order steady streaming, namely, single and double layer streamings, respectively, according to the strength of the viscous effects. Compared with the theoretical analysis, the lattice Boltzmann simulation is accurate for both radiation forces and flow fields. Both numerical results and scaling analysis show that the viscous drag is linearly proportional to the thickness of the penetration depth, which is coincident with the low viscous cases. Copyright © 2015 John Wiley & Sons, Ltd.
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DOI：
--
发表时间：
2010
期刊：
--
影响因子：
--
作者：
By A. Mani
通讯作者：
By A. Mani
DOI：
10.1016/b978-0-340-67649-3.x5000-3
发表时间：
1997-01
期刊：
--
影响因子：
--
作者：
Yasuki Nakayama
通讯作者：
Yasuki Nakayama
DOI：
10.1088/0305-4470/38/15/003
发表时间：
2005-04
期刊：
Journal of Physics A: Mathematical and General
影响因子：
--
作者：
D. Haydock
通讯作者：
D. Haydock
DOI：
10.1201/b12301-14
发表时间：
1994
期刊：
--
影响因子：
--
作者：
James A. Fay
通讯作者：
James A. Fay
影响因子：
3.1
作者：
Schenk, Jonas;Troebs, Lisa;Albrecht, Merwe
通讯作者：
Albrecht, Merwe