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Steady State Vortex Structure of Lid Driven Flow Inside Shallow Semi Ellipse Cavity

M. S., Idris and M.Irwan, M. A. and N. M. M., Ammar (2012) Steady State Vortex Structure of Lid Driven Flow Inside Shallow Semi Ellipse Cavity. Journal of Mechanical Engineering and Sciences (JMES) , 2 (Jun. pp. 133-147. ISSN 2231-8380

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Abstract

In this paper, the lid driven cavity flow inside semi-ellipse shallow cavity was simulated using stream function vorticity approach emphasizing non-uniform grid method. Three aspect ratio of 1/4, 1/3 and 3/8 were simulated using laminar flow conditions (range of Reynolds numbers of 100-2000). Primary and secondary vortexes were extensively monitored through centre vortex location, streamlines pattern and peak stream function value. Secondary vortex developed at Re 1500 for the aspect ratio of 1/4 while the secondary vortex formed at earlier Reynolds number of 1000 for the aspect ratio of 1/3 and 3/8. The size of secondary vortex increases as Reynolds number increases. The similar trends can be observed the differences between primary vortex separation angle and reattachment angle. For the entire streamline pattern, many primary vortex centre locations situated at the right side of the cavity.

Item Type: Article
Uncontrolled Keywords: Semi-ellipse;Lid driven cavity flow; DNS; non-uniform
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Manufacturing Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 21 Nov 2012 03:06
Last Modified: 14 Feb 2018 07:46
URI: http://umpir.ump.edu.my/id/eprint/2863
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