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Three-dimensional multiphase flow mo...

University of Arkansas.

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Three-dimensional multiphase flow modeling of spray cooling using parallel computing.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Three-dimensional multiphase flow modeling of spray cooling using parallel computing./
作者:	Sarkar, Suranjan.
面頁冊數:	164 p.
附註:	Source: Dissertation Abstracts International, Volume: 69-10, Section: B, page: 6376.
Contained By:	Dissertation Abstracts International69-10B.
標題:	Applied Mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3334179
ISBN:	9780549869818

Three-dimensional multiphase flow modeling of spray cooling using parallel computing.
Sarkar, Suranjan.

Three-dimensional multiphase flow modeling of spray cooling using parallel computing. - 164 p.

Source: Dissertation Abstracts International, Volume: 69-10, Section: B, page: 6376.

Thesis (Ph.D.)--University of Arkansas, 2008.

Spray cooling with phase change is capable of a very large amount of heat transfer from the hot surface of many power electronics system and is a potential candidate for future thermal management. The available theoretical knowledge of spray cooling is limited because of the involved phase change and complex bubble and droplet dynamics. A good knowledge of the fundamental science and the heat removal process is necessary to design more proficient high heat flux spray cooling system. In this research, a CFD based 3-D multiphase model was developed in a parallel computing environment to understand the spray cooling process. A vapor bubble growing within a liquid thin film on a hot wall and a droplet impacting the liquid thin film was studied. Studies were performed for a range of droplet velocities and wall superheats through the model. A comparison was made between the experimental spray cooling heat flux and the predicted heat flux from the model. The model was modified further to include the multiple droplet-bubble dynamics to simulate spray cooling more rationally.

ISBN: 9780549869818Subjects--Topical Terms:

1018410
Applied Mechanics.

Three-dimensional multiphase flow modeling of spray cooling using parallel computing.
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520 $a Spray cooling with phase change is capable of a very large amount of heat transfer from the hot surface of many power electronics system and is a potential candidate for future thermal management. The available theoretical knowledge of spray cooling is limited because of the involved phase change and complex bubble and droplet dynamics. A good knowledge of the fundamental science and the heat removal process is necessary to design more proficient high heat flux spray cooling system. In this research, a CFD based 3-D multiphase model was developed in a parallel computing environment to understand the spray cooling process. A vapor bubble growing within a liquid thin film on a hot wall and a droplet impacting the liquid thin film was studied. Studies were performed for a range of droplet velocities and wall superheats through the model. A comparison was made between the experimental spray cooling heat flux and the predicted heat flux from the model. The model was modified further to include the multiple droplet-bubble dynamics to simulate spray cooling more rationally.
520 $a The computed liquid and vapor interface, flow field, temperature distributions and heat flux contours at different time instants were visualized to understand the heat removal process within thin liquid film of spray cooling. A remarkably faster turnaround time (within a day) to study the spray cooling phenomena was achieved in parallel computing, when compared to very long turnaround time (30-50 days) in serial computing. The level set method was utilized to capture the movement of the free surface. This research is also intended to solve numerical challenges like the use of the correct equation for thin film evaporation, efficient calculation of temperature gradient and area of interface and use of efficient solvers to solve 3-D multiphase flow problems.
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