Date of Award

5-2014

Document Type

Thesis - Open Access

Degree Name

Master of Science in Aerospace Engineering

Department

Graduate Studies

Committee Chair

Dr. Yechiel Crispin

First Committee Member

Dr. Reda Mankbadi

Second Committee Member

Dr. Dongeun Seo

Abstract

This research is a computational fluid dynamic study of the formation of vortices and separation bubbles in a square cavity as well as in a cylindrical cavity. Whereas there has been previous research work on the problem of a free stream over different types of cavities, like open and closed cavities or lid driven cavities, this research on an inlet induced flow inside a square cavity lead to unusual and interesting basic fluid dynamical phenomena. The flow in a square cavity and in a cylindrical cavity is simulated over a range of Reynolds numbers and the appearance of separation bubbles and vortices have been obtained.

A large separation bubble develops in the vicinity of the left bottom corner for a range of Reynolds numbers from 1 up to about 1700. Once that Reynolds number is reached, the bubble disappears and a new vortical structure appears in the vicinity of the top right position.

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