Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/66966
Title: Studies of some free convective heat and mass transfer problems of incompressible fluid with or without thermal stratification
Researcher: Neog, Bhaben Chandra
Guide(s): Deka, R K
Keywords: Abramowitz
Algorithm
Chemical
Magnetohydrodynamics
Skin-Friction
Stratification
Thermal
Thermodynamic
University: Gauhati University
Completed Date: 31/10/2009
Abstract: This thesis entitled quotStudies of Some Free Convective Heat and Mass Transfer Problems of Incompressible Fluid With or Without Thermal Stratificationquot deals with a few problems on free convective heat transfer with thermal stratification. and also heat and mass transfer without thermal stratification. It comprises of fifteen chapters. The first chapter is an introductory one which deals with the development of the subject and the second chapter is on the review of relevant literature. Chapters 3 to 12 deal with the problems of thermally stratified fluids in which pressure work and the vertical temperature advection terms are considered in the thermodynamic energy equation (which are generally not considered in the conventional models of similar problems). Since the vertical temperature advection terms and the pressure work term are similar in nature so they are combined into a single term, (termed as stratification parameter). Due to the introduction of this term in the energy equation, both the momentum equation and the energy equations become coupled. As a result exact solutions to this type of problems involve some difficulty because of the coupling. Since we are interested in obtaining the exact solutions of the problems, so to tackle this situation we are restricted to a fluid whose thermal expansion coefficient is that of a perfect fluid with Prandtl number unity only. Further, in order to delay or prevent flow instability, we restrict our attention to linearly varying ambient temperature Tand#8734; and also approximate and#961;and#8734;/and#961; as unity. Introduction of this stratification parameter in the energy equation justifies a universal phenomenon that warm fluid riscs, expands and cools relative to the environment whereas cool fluid subsides, compresses and warms relative to the environment. We compare our stratified solutions with the unstratified solutions and found significant differences over the conventional results. Also, due to the introduction of stratification parameter, unsteady solution comes out as steady at larger...
Pagination: 
URI: http://hdl.handle.net/10603/66966
Appears in Departments:Department of Mathematics

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02_certificate.pdf27.32 kBAdobe PDFView/Open
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04_dedicated.pdf7.94 kBAdobe PDFView/Open
05_content.pdf124.23 kBAdobe PDFView/Open
06_acknowledgement.pdf90.49 kBAdobe PDFView/Open
07_list of publication.pdf59.87 kBAdobe PDFView/Open
08_abstract.pdf187.16 kBAdobe PDFView/Open
09_list of symbols.pdf55.44 kBAdobe PDFView/Open
10_chapter 1.pdf1.2 MBAdobe PDFView/Open
11_chapter 2.pdf650.4 kBAdobe PDFView/Open
12_chapter 3.pdf650.71 kBAdobe PDFView/Open
13_chapter 4.pdf727.15 kBAdobe PDFView/Open
14_chapter 5.pdf831.19 kBAdobe PDFView/Open
15_chapter 6.pdf437.44 kBAdobe PDFView/Open
16_chapter 7.pdf419.11 kBAdobe PDFView/Open
17_chapter 8.pdf486.58 kBAdobe PDFView/Open
18_chapter 9.pdf845.91 kBAdobe PDFView/Open
19_chapter 10.pdf476.74 kBAdobe PDFView/Open
20_chapter 11.pdf414.2 kBAdobe PDFView/Open
21_chapter 12.pdf517.49 kBAdobe PDFView/Open
22_chapter 13.pdf575.59 kBAdobe PDFView/Open
23_chapter 14.pdf489.21 kBAdobe PDFView/Open
24_chapter 15.pdf691.04 kBAdobe PDFView/Open
25_published works.pdf82.2 kBAdobe PDFView/Open
26_papers published.pdf4.78 MBAdobe PDFView/Open


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