An experimental study on heat transfer characteristics with turbulent swirling flow using uniform heat flux in a cylindrical annuli

被引：0
|
作者：
Tae-Hyun Chang
Kwon-Soo Lee
机构：
[1] Kyungnam University,Division of Mechanical and Automation Engineering
[2] Kyungnam University Graduate School,Department of Mechanical Engineering
来源：
KSME International Journal | 2003年 / 17卷
关键词：
Bulk Temperature; Uniform Heat Flux; Dittus-Boelter Equation; Multi-pitot Tube; Swirl Intensity; Tangential Inlet Condition;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An experimental study was performed to investigate heat transfer characteristics of turbulent swirling flow in an axisymmetric annuli. The static pressure, the local flow temperature, and the wall temperature with decaying swirl were measured by using tangential inlet conditions and the friction factor and the local Nusselt number were calculated for Re=30000-70000. The local Nusselt number was compared with that obtained from the Dittus-Boelter equation with swirl and without swirl. The results showed that the swirl enhances the heat transfer at the inlet and the outlet of the test tube.
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页码：2042 / 2052
页数：10
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