Journal ArticleDOI
Effect of ridge shapes on turbulent heat transfer and friction in a rectangular channel
Tong-Miin Liou,Jenn-Jiang Hwang +1 more
TLDR
In this article, the authors used real-time holographic interferometry to measure local and average heat transfer and friction in a channel with various-shaped ridges mounted on two opposite walls.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 1993-03-01. It has received 175 citations till now. The article focuses on the topics: Ridge & Heat transfer coefficient.read more
Citations
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Journal ArticleDOI
Heat transfer and friction in solar air heater duct with V-shaped rib roughness on absorber plate
TL;DR: In this article, the effect of geometrical parameters of V-shaped ribs on heat transfer and fluid flow characteristics of rectangular duct of solar air heater with absorber plate having V-shape ribs on its underside have been reported.
Journal ArticleDOI
Heat transfer coefficient and friction factor correlations for rectangular solar air heater duct having transverse wedge shaped rib roughness on the absorber plate
TL;DR: In this paper, the effect of roughness on the heat transfer coefficient and friction factor of a rectilinear rectangular duct with one broad wall roughened by wedge shaped transverse integral ribs was investigated.
Journal ArticleDOI
Heat transfer and friction factor correlations for a duct having dimple-shape artificial roughness for solar air heaters
R.P. Saini,Jitendra Verma +1 more
TL;DR: In this paper, the effect of roughness and operating parameters on heat transfer and friction factor in a roughened duct provided with dimple-shape roughness geometry has been investigated.
Journal ArticleDOI
Heat transfer coefficient and friction factor correlations for the transitional flow regime in rib-roughened rectangular ducts
TL;DR: In this paper, an experimental investigation of heat transfer and friction for the flow of air in rectangular ducts with repeated chamfered rib-roughness on one broad wall is presented.
Journal ArticleDOI
Heat transfer and friction factor correlations for artificially roughened ducts with expanded metal mesh as roughness element
R.P. Saini,J.S. Saini +1 more
TL;DR: In this paper, the effect of expanded metal mesh geometry on the heat transfer coefficient and friction factor has been investigated for fully developed turbulent flow in a rectangular duct with large aspect ratio (11: 1).
References
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Journal ArticleDOI
Developing heat transfer in rectangular channels with rib turbulators
Je-Chin Han,J.S. Park +1 more
TL;DR: In this article, the combined effects of the rib angle-of-attack and the channel aspect ratio on the distributions of the local heat transfer coefficient for developing flow in short rectangular channels (L/D = 10 and 15) with a pair of opposite rib-roughened walls were determined for Reynolds numbers from 10 000 to 60 000.
Journal ArticleDOI
Heat transfer and friction characteristics in rectangular channels with rib turbulators
TL;DR: In this article, the effect of the channel aspect ratio on the distribution of the local heat transfer coefficient in rectangular channels with two opposite ribbed walls (to simulate turbine airfoil cooling passages) was determined for a Reynolds number range of 10,000 to 60,000.
Journal ArticleDOI
Heat Transfer and Friction in Channels With Two Opposite Rib-Roughened Walls
TL;DR: Etude experimentale d'un ecoulement d'air turbulent dans des conduites carrees avec 2 parois opposees a nervures en vue de determiner l'influence des rapports pas/hauteur des nervures and hauteur nervure/diametre equivalent sur le coefficient de frottement and les coefficients de transfert de chaleur for un nombre de Reynolds variant de 7000 a 90000 as discussed by the authors.
Journal ArticleDOI
Heat transfer enhancement in channels with turbulence promoters
Je-Chin Han,J. S. Park,C. K. Lei +2 more
TL;DR: In this article, the effect of rib angle-of-attack on the pressure drop and the average heat-transfer coefficients in the fully developed turbulent air flow in a square duct with two opposite rib-roughened walls for Reynolds numbers varied from 7,000 to 90,000.
Heat transfer enhancement in channels with turbulence promoters
Je-Chin Han,J. S. Park,C. K. Lei +2 more
TL;DR: In this paper, the effect of rib angle-of-attack on the pressure drop and the average heat-transfer coefficients in a fully developed turbulent air flow in a square duct with two opposite rib-roughened walls for Reynolds numbers varied from 7,000 to 90,000.