Momentum and Heat Transfer from a Semi-Circular Cylinder to Power-Law Fluids in the Vortex Shedding Regime

被引：20

作者：

Chandra, Avinash ^{[1
]}

Chhabra, R. P. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Kanpur 208016, Uttar Pradesh, India

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2013年 / 63卷 / 07期

关键词：

STEADY FLOW; CIRCULAR-CYLINDER; ELLIPTIC CYLINDER; NEWTONIAN FLUIDS; SQUARE CYLINDER; CONVECTION;

D O I：

10.1080/10407782.2013.742773

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Flow and heat transfer from a semi-circular cylinder to power-law fluids has been studied in the laminar vortex shedding regime for the range of conditions as follows: Reynolds number, 40Re140; Prandtl number, 0.7Pr50; and power-law index, 0.2n1.8. Extensive results are presented in terms of the streamline, vorticity and isotherm profiles, drag and lift coefficients, Strouhal number, and Nusselt number. The influence of Reynolds number, Prandtl number, and power-law index are seen to be more prominent in shear-thinning fluids (n<1) than that in shear-thickening (n>1) fluids. The shear-thinning fluid behavior enhances the rate of heat transfer, whereas shear-thickening fluid behavior impedes it.

引用

页码：489 / 510

页数：22

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