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Role of Interactions of Boundary Conditions and Baroclinic Vorticity in the Instability of Thermally Stratified Spinup in a Cylinder


Abstract A numerical study of incremental spin-up and spin-up from rest of a thermally- stratified fluid enclosed within a right circular cylinder with rigid bottom and side walls and stress-free upper surface is presented. Thermally stratified spin-up is a typical example of baroclinity, which is initiated by a sudden increase in rotation rate and the tilting of isotherms gives rise to baroclinic source of vorticity. Research by (Smirnov et al. [2010a]) showed the differences in evolution of instabilities when Dirichlet and Neumann thermal boundary conditions were applied at top and bottom walls. Study of parametric variations carried out in this dissertation confirmed the instability patterns observed by them for given aspect ratio and Rossby numb... (more)
Created Date 2011
Contributor Kher, Aditya Deepak (Author) / Chen, Kangping (Advisor) / Huang, Huei-Ping (Committee member) / Herrmann, Marcus (Committee member) / Arizona State University (Publisher)
Subject Engineering / Mechanical engineering / baroclinic / Spin-up / spinup / Stratified / thermally
Type Masters Thesis
Extent 47 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note M.S. Mechanical Engineering 2011
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis