Channel flow past bluff-body: outlet boundary condition, vortex shedding and effects of buoyancy

被引：27

作者：

Abbassi, H

Turki, S

Nasrallah, SB

机构：

[1] Fac Sci, Dept Phys, Sfax 3038, Tunisia

[2] Ecole Natl Ingn, Dept Energet, Monastir 5000, Tunisia

来源：

COMPUTATIONAL MECHANICS | 2002年 / 28卷 / 01期

关键词：

D O I：

10.1007/s004660100261

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Structure of laminar flow and heat transfer, in a two-dimensional horizontal plane channel differentially heated, with a built-in triangular prism is investigated from the numerical solutions of complete Navier-Stokes and energy equations. Results are obtained for Reynolds and Grashof numbers ranging respectively from 30 to 200 and from 0 to 1.5 x 10(4) at Pr = 0.71. In forced convection, results are specially presented to show how the vortex shedding at downstream affects the upstream. Also, two correlations giving the Strouhal and the averaged Nusselt numbers as functions of the Reynolds number are proposed. In mixed convection, the superposition of Von Karman street and convective cells is discussed.

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收藏

页码：10 / 16

页数：7

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