Multiple-relaxation-time lattice Boltzmann simulation of non-Newtonian flows past a rotating circular cylinder

被引：44

作者：

Fallah, Keivan ^{[1
]}

Khayat, Morteza ^{[2
]}

Borghei, Mohammad Hossein ^{[3
]}

Ghaderi, Atena ^{[4
]}

Fattahi, Ehsan ^{[5
]}

机构：

[1] Islamic Azad Univ, Sari Branch, Dept Mech Engn, Sari, Iran

[2] Islamic Azad Univ, Sci & Res Branch, Dept Mech Engn, Tehran, Iran

[3] Iran Univ Sci & Technol, Fac Mech Engn, Tehran, Iran

[4] Islamic Azad Univ, Ayatollah Amoli Branch, Dept Mech Engn, Amol, Iran

[5] Babol Univ Technol, Fac Mech Engn, Babol Sar, Iran

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 2012年 / 177卷

关键词：

Lattice Boltzmann method; Multiple-relaxation-time; Power-law fluids; Drag coefficient; Lift coefficient; Rotating circular cylinder; POWER-LAW FLUIDS; SHEAR-THINNING FLUIDS; NUMERICAL-SIMULATION; STEADY FLOW; BOUNDARY-CONDITIONS; HEAT-TRANSFER; LAMINAR-FLOW; PRESSURE; MODELS; WAKE;

D O I：

10.1016/j.jnnfm.2012.03.014

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The flow field around a rotating circular cylinder is studied numerically using Lattice Boltzmann method via multi-relaxation-time approach. Simulations are performed at a fixed Reynolds number of 100 while dimensionless rotational ratio (beta) and power-law index (n) range as, 0 <= beta <= 2.5 and 0.4 <= n <= 1.8, respectively. The effects of dimensionless rotational ratio and the power-law index on the flow field, mean drag and lift coefficients, Strouhal number and pressure coefficient are investigated in detail. To verify the simulation, the results are compared to previous experimental and numerical data. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1 / 14

页数：14

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