A mass-conserving lattice Boltzmann method for bubble behavior estimation
A mass-conserving lattice Boltzmann method for bubble behavior estimation
复制标题
用于估计气泡行为的质量守恒格子玻尔兹曼方法
DOI：
10.1016/j.ces.2018.08.061
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发表时间：
2019-01
影响因子：
4.7
通讯作者：
Wang Xiaodong
中科院分区：
文献类型：
--
作者：
Li Xue;Gao Deyang;Hou Baolin;Wang Xiaodong
格子Boltzmann方法（LBM）由于其在组织和执行分布函数方面的介观性质而被认为是模拟多相流体现象的可变形运动界面的有前途的方法。然而，LBM在模拟真实的气液泡状流时受到限制，其中高的表面张力和大的密度比会显著增加数值的不准确性和不稳定性。本文发展了一个质量守恒的LBM模型。该模型引入了守恒修正步骤和有效的表面张力公式来提高物理精度，并利用多松弛时间（MRT）D3Q19（三维和19个离散方向）算子来提高数值稳定性。该模型被应用于估计气泡的行为，无量纲参数的相关性，和阻力系数。将计算结果与文献中的解析结果、已有的数值计算结果和实验数据进行了比较。结果表明，所提出的质量守恒LBM模型能够较好地预测气液两相体系中的气泡行为。
The Lattice Boltzmann Method (LBM) has been known as a promising approach for simulating the deformable moving interface of multiphase fluid phenomena due to its mesoscopic nature in organizing and executing distribution functions. However, LBMs are limited in simulating real gas–liquid bubbly flows, where the numerical inaccuracy and instability may significantly increase due to the high surface tension force and the large density ratio. In this paper, a mass-conserving LBM model is developed. The proposed model introduces a conserving correction step and an effective surface tension formula to improve physical accuracy, and utilizes a Multiple-Relaxation-Time (MRT) D3Q19 (three-dimensional and 19 discrete direction) operator to increase numerical stability. The proposed model was applied to estimate bubble behaviors, dimensionless parameter correlations, and drag force coefficient. The results were compared with analytical results, existing numerical results, and experimental data in literature and performed. The good agreement indicates that the proposed mass-conserving LBM model has the ability to predict bubble behaviors in the gas–liquid system.
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影响因子：
1.2
作者：
J. Gong;N. Oshima;Yutaka Tabe
通讯作者：
J. Gong;N. Oshima;Yutaka Tabe
影响因子：
1.2
作者：
N. Takada;M. Misawa;A. Tomiyama;S. Hosokawa
通讯作者：
N. Takada;M. Misawa;A. Tomiyama;S. Hosokawa
影响因子：
4.1
作者：
Y. Renardy;M. Renardy
通讯作者：
Y. Renardy;M. Renardy
影响因子：
2.9
作者：
GUNSTENSEN, AK;ROTHMAN, DH;ZANETTI, G
通讯作者：
ZANETTI, G
DOI：
10.1016/j.colsurfa.2004.04.081
发表时间：
2004-12
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Y. Zuo;M. Ding;A. Bateni;M. Hoorfar;A. Neumann
通讯作者：
Y. Zuo;M. Ding;A. Bateni;M. Hoorfar;A. Neumann