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Three-dimensionality and secondary vortex street in the wake of cylindrical bluff bodies

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posted on 2017-02-28, 04:45 authored by Radi, Alexander
The aerodynamics of bluff bodies, such as cars or trucks, are largely dominated by vortex dynamics (regions of rotating flow). This thesis describes water channel experiments on spinning and stationary cylinders, which add to a better understanding of three-dimensional transitions and vortex interactions in incompressible bluff body wakes. The flows downstream of a slender cylinder of circular or elliptical cross-sectional shape and a flat plate are studied. New three-dimensional modes in the wake of a spinning cylinder and a new flow regime behind an elliptical cylinder are observed and explained for the first time.


Campus location


Principal supervisor

John Sheridan

Year of Award


Department, School or Centre

Mechanical and Aerospace Engineering


Doctor of Philosophy

Degree Type



Faculty of Engineering