An Improved Diffuse-Interface Lattice Boltzmann Method for Particulate Flows

被引：0
|
作者：
Liu, Jiao [1 ]
Chai, Zhenhua [2 ,3 ,4 ]
Shi, Baochang [2 ,3 ,4 ]
机构：
[1] Nanchang Univ, Sch Math & Comp Sci, Nanchang 330031, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R China
[3] Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China
[4] Huazhong Univ Sci & Technol, Hubei Key Lab Engn Modeling & Sci Comp, Wuhan 430074, Peoples R China
来源：
COMMUNICATIONS IN COMPUTATIONAL PHYSICS | 2024年 / 35卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Diffuse-interface lattice Boltzmann method; particulate flows; convergence rate; SIMULATION; VELOCITY;
D O I：
10.4208/cicp.OA-2023-0167
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper, an improved diffuse -interface lattice Boltzmann method for particulate flows is developed. In this method, the difference in viscosity between the fluid and the particle is considered, and a smooth function is introduced to the collision term of the evolution equation. Some simulations are performed to test the method, and the numerical results show that, compared to the previous diffusioninterface lattice Boltzmann method [J. Liu et al., Comput. Fluids 233 (2022) 105240] which only has a first -order accuracy in space, the present one has a second -order convergence rate in space.
引用
收藏
页码：1309 / 1326
页数：18
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