Numerical Simulation of Power-Law Fluid Flow in a Trapezoidal Cavity Using the Incompressible Finite-Difference Lattice Boltzmann Method

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成果类型：

期刊论文

作者：

Chen, Xinmeng;Chai, Zhenhua;Zhao, Yong;Shi, Baochang

通讯作者：

Shi, BC

作者机构：

[Chen, Xinmeng] CSSC Jiujiang Marine Equipment Grp Co Ltd, Jiujiang 332000, Peoples R China.

[Shi, Baochang; Chai, Zhenhua] Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R China.

[Shi, Baochang; Chai, Zhenhua] Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China.

[Shi, Baochang; Chai, Zhenhua] Huazhong Univ Sci & Technol, Hubei Key Lab Engn Modeling & Sci Comp, Wuhan 430074, Peoples R China.

[Zhao, Yong] Changsha Univ Sci & Technol, Sch Math & Stat, Changsha 410114, Hunan, Peoples R China.

通讯机构：

[Shi, BC ] H

Huazhong Univ Sci & Technol, Sch Math & Stat, Wuhan 430074, Peoples R China.

Huazhong Univ Sci & Technol, Inst Interdisciplinary Res Math & Appl Sci, Wuhan 430074, Peoples R China.

Huazhong Univ Sci & Technol, Hubei Key Lab Engn Modeling & Sci Comp, Wuhan 430074, Peoples R China.

语种：

英文

关键词：

Finite difference lattice Boltzmann method;coordinate transformation;power-law fluid;trapezoidal cavity.

期刊：

计算物理通讯(英文)

ISSN：

1815-2406

年：

2025

卷：

期：

页码：

1173–1209

DOI：

10.4208/cicp.OA-2022-0302

基金类别：

National Natural Science Foundation of China [12072127, 51836003]; Fundamental Research Funds for the Central Universities, HUST [2021JYCXJJ010]

机构署名：

本校为其他机构

院系归属：

数学与统计学院

摘要：

In this paper, a numerical investigation of power-law fluid flow in the trapezoidal cavity has been conducted by incompressible finite-difference lattice Boltzmann method (IFDLBM). By designing the equilibrium distribution function, the Navier-Stokes equations (NSEs) can be recovered exactly. Through the coordinate transformation method, the body-fitted grid in physical region is transformed into a uniform grid in computational region. The effect of Reynolds $(Re)$ number, the power-law index $n$ and the vertical angle $θ$ on the trapezoidal c...

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Numerical Simulation of Power-Law Fluid Flow in a Trapezoidal Cavity Using the Incompressible Finite-Difference Lattice Boltzmann Method

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