Paper Title:

An Experimental Investigation of Heat Transfer Enhancement by Pulsating Laminar Flow in a Triangular Grooved Channel

Periodical Advanced Materials Research (Volumes 516 - 517)
Main Theme Electrical Power & Energy Systems
Edited by Jinyue Yan, Charles C. Zhou, Rutang Liao and Jianwen Wang
Pages 249-252
DOI 10.4028/www.scientific.net/AMR.516-517.249
Citation Bing Chang Yang et al., 2012, Advanced Materials Research, 516-517, 249
Online since May, 2012
Authors Bing Chang Yang, Dong Xu Jin
Keywords Experimental Investigation, Heat Transfer Enhancement, Pulsating Flow, Triangular Grooved Channel
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Abstract

Heat transfer enhancement by pulsating flow in a triangular grooved channel has been experimentally investigated. Effects of Reynolds number Re, Strouhal number St, pulsation amplitude A on the heat transfer enhancement were studied. The experimental results show that, the pulsating flow can significantly enhance heat transfer compared to the steady flow case, for instance, an enhancement of 115% is achieved at Re=400, A=0.5 and St=0.3. There exists an optimal Strouhal number corresponding to the maximum heat transfer enhancement factor. The heat transfer enhancement factor increases with the increase of Reynolds number and pulsation amplitude.