Experimental investigation of turbulent natural convection flow in a channel

被引：41

作者：

Ayinde, TF ^{[1
]}

Said, SAM ^{[1
]}

Habib, MA ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia

来源：

HEAT AND MASS TRANSFER | 2006年 / 42卷 / 03期

关键词：

natural convection; vertical channel; buoyancy; PIV; experimental investigation;

D O I：

10.1007/s00231-005-0017-2

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the results of velocity measurements of natural convection in symmetrically heated vertical channel using the particle image velocimetry (PIV) system. Velocity measurements were conducted at three different sections on the horizontal plane to validate the flow two-dimensionality and at three different heights in the vertical plane to establish vertical mean velocity profiles. The results indicate a considerable influence of the Rayleigh number and aspect ratio on the mean velocity profile. The results also indicate significant diffusion rates of the vertical mean velocity component and normal Reynolds stresses towards the center of the channel.

引用

页码：169 / 177

页数：9

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