Heat transfer characteristics of aluminum metal foam subjected to a pulsating/steady water flow: Experimental and numerical approach
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- 作者：A.M. Bayomy ; M.Z. Saghir
- 关键词：Electronic cooling ; Forced convection ; Porous media ; Heat transfer ; Oscillating flow ; Pulsating flow
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：97
- 期：Complete
- 页码：318-336
- 全文大小：2566 K
文摘
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The temperature distributions of the pulsating water flow show a convex profile with the maximum temperature at the center of the test section.
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The local Nusselt number of the pulsating flow is higher at both channel entrances and begins to decrease until it reaches a minimum point at the center of the test section.
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The average Nusselt number of the pulsating water flow increases along with increases in the pulsating flow amplitude and the kinetic Reynolds number.
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The enhancement percentage of the average Nusselt number of the pulsating flow compared with the steady flow is 14%.
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The temperature uniformity index of the pulsating flow is 73% lower than the temperature uniformity index of the steady flow.