Journal ArticleDOI
Mixed Convection Heat Transfer in a Grooved Channel in the Presence of a Baffle
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In this article, the authors present a comprehensive investigation of mixed convection in a differentially heated grooved channel in the presence of an adiabatic baffle supported centrally from the top wall.Abstract:
The paper presents a comprehensive investigation of mixed convection in a differentially heated grooved channel in the presence of an adiabatic baffle supported centrally from the top wall. Both assisting and opposing flow configurations are simulated using in-house CFD code for Richardson number 0.001–1000 and Reynolds number 10–200, considering a baffle height of up to 80% of enclosure height and air as working fluid. The flow and heat transfer characteristics have been analyzed using energy flux vectors, isotherms, averaged Nusselt number, and streamlines. The results show remarkable enhancement of heat transfer in the mixed convection regime in the presence of baffle.read more
Citations
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Analysis of heat transfer and pumping power for bottom-heated porous cavity saturated with Cu-water nanofluid
TL;DR: In this article, the analysis of a typical system is demonstrated considering bottom-heating, porous medium and Cu-water nanofluid, and the results reveal that the heat transport of base liquid is greatly influenced by these parameters.
Journal ArticleDOI
Enhanced convective heat transfer in lid-driven porous cavity with aspiration
TL;DR: In this paper, a two-sided lid-driven porous cavity under differential heating, which is expanded into possible four (assisting, opposing, upward and downward) flow configurations, is explored.
Journal ArticleDOI
Oriented magnetic field effect on mixed convective flow of nanofluid in a grooved channel with internal rotating cylindrical heat source
TL;DR: In this paper, the influence of oriented magnetic field on mixed convection flow of water-based nanofluid inside a grooved channel with a rotating heat source is numerically investigated.
Journal ArticleDOI
Thermal management of heating element in a ventilated enclosure
TL;DR: In this article, the entire heating element was divided into multiple equal segments and positioned appropriately on vertical side walls, namely at bottom, middle or top location. And the performance analyses of segmental heating and whole heating were conducted for different Richardson number (0.01-100) and Reynolds number (50-200).
Journal ArticleDOI
Heatlines and other visualization techniques for confined heat transfer systems
TL;DR: In this article, an effort has been made to collate visualization techniques in literature for convective heat transfer system like, heatline, energy streamlines, energy flux vectors, proper orthogonal decomposition (POD), Poincare map etc.
References
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Journal ArticleDOI
Experimental Investigation of Opposing Mixed Convection in a Channel with an open Cavity Below
TL;DR: In this article, mixed convection in an open cavity with a heated wall bounded by a horizontal unheated plate is investigated experimentally, and the results are reported in terms of wall temperature profiles of the heated wall and flow visualization.
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Transient mixed convection in a partially divided enclosure
Sey-Ping How,Tsan-Hui Hsu +1 more
TL;DR: In this article, the effects of divider and Reynolds numbers on the heat transfer mechanism are found to be significant, and the results indicate that steady time depends strongly on the governing parameters and the configuration of the divider.
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Flow pulsation and baffle’s effects on the opposing mixed convection in a vertical channel
Tsai-Shou Chang,Yann-Huei Shiau +1 more
TL;DR: In this paper, the effects of a horizontal baffle on the heat transfer characteristics of pulsating opposing mixed convection in a parallel vertical open channel were investigated, and it was shown that the channel with both flow pulsation and a baffle gives the best heat transfer.
Journal ArticleDOI
Effect of viscous dissipation on fully developed laminar mixed convection in a vertical double-passage channel
TL;DR: In this article, the effect of viscous dissipation on laminar mixed convection in a vertical double-passage channel has been investigated numerically by taking into account the effect.
Journal ArticleDOI
Effect of baffle on convective heat transfer from a heat generating element in a ventilated cavity
TL;DR: In this article, the effect of varying the baffle heights and the position on the enhancement of heat transfer from a heater is investigated, and correlations have been developed for the average Nusselt number and the maximum dimensionless temperature occurring in the heat generating element.