INFLUENCE OF VORTEX GENERATORS ON DRAG AND HEAT TRANSFER FROM A CIRCULAR CYLINDER NORMAL TO AN AIRSTREAM

被引：91

作者：

JOHNSON, TR

JOUBERT, PN

机构：

[1] State Electricity Commission of Victoria, Melbourne, VIC

[2] Department of Mechanical Engineering, University of Melbourne, Melbourne, VIC

来源：

JOURNAL OF HEAT TRANSFER | 1969年 / 91卷 / 01期

关键词：

D O I：

10.1115/1.3580126

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental investigations were carried out to examine the effect of vortex generators on drag and heat transfer from a circular cylinder in a cross/low. The cylinder was fitted with two rows of vortex generators which were symmetrically placed on either side of and parallel to the front stagnation line. One configuration of vortex generator was used and the angular position of the rows from the front stagnation line was varied. In the heat transfer runs the vortex generator position remained unvaried. Results are presented to show the varia tion of drag coefficient with Reynolds n umber for several angular positions of the generator rows. Results are also presented to show the variation of Nusselt number with Reynolds number both for a cylinder with and without generators. These shozv that both decreases in drag coefficient and increases in Nusselt number can be obtained when vortex generators are fitted. © 1969 by ASME.

引用

页码：91 / &