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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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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:
38
期:
4
页码:
1173–1209
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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