THE EFFECT OF AIDING/OPPOSING BUOYANCY ON TWO-DIMENSIONAL LAMINAR FLOW ACROSS A CIRCULAR CYLINDER

被引：55

作者：

Gandikota, Gurunath ^{[1
]}

Amiroudine, Sakir ^{[2
]}

Chatterjee, Dipankar ^{[3
]}

Biswas, Gautam ^{[4
]}

机构：

[1] Arts & Metiers Paris Tech, LPMI, Angers, France

[2] CNRS, UMR, Lab TREFLE, F-33405 Talence, France

[3] Council Sci & Ind Research, Cent Mech Engn Res Inst, Simulat & Modeling Lab, Durgapur, India

[4] Indian Inst Technol, Kanpur 208016, Uttar Pradesh, India

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2010年 / 58卷 / 05期

关键词：

CONVECTION HEAT-TRANSFER; MIXED CONVECTION; NUMERICAL-SIMULATION; HORIZONTAL CYLINDER; SQUARE CYLINDERS; VERTICAL CHANNEL; DIRECTION; WAKES;

D O I：

10.1080/10407782.2010.505167

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effect of thermal buoyancy on the upward flow and heat transfer characteristics around a heated/cooled circular cylinder is studied. A two-dimensional finite-volume model is deployed for the analysis. The influence of aiding/opposing buoyancy is studied for the range of parameters -0.5 <= Ri <= 0.5, 50 <= Re <= 150, and the blockage ratios of B = 0.02 and 0.25. The flow shows unsteady periodic nature in the chosen range of Reynolds numbers for the forced convective cases (Ri = 0), and the vortex shedding stops completely at some critical values of Richardson numbers.

引用

页码：385 / 402

页数：18

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