Topical Problems of Fluid Mechanics


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Institute of Thermomechanics AS CR, v.v.i. CTU in Prague Faculty of Mech. Engineering Dept. Tech. Mathematics MIO Université du Sud Toulon Var - AMU - CNRS - IRD Czech Pilot centre ERCOFTAC
Experimental Investigation of 3D Vortex Structures in Wake of Hyperboloid-Shaped Model

V. Barraclough, J. Novotný, P. Šafařík

Abstract:
The model of a hyperboloid shaped object was measured by means of 2D Particle Image Velocimetry in the Wind Tunnel with simulated atmospheric boundary layer. The model was tested in a subcritical range of Reynolds number. Various planes in a wake of the model were captured. One was set in the model axis and perpendicular to the ground and the averaged velocity field of this measurement revealed a possible arch vortex behind the model. Next, several planes perpendicular to the ground were measured. The averaged velocity field showed two symmetrical formations. From these measurements, the shape of the arch vortex was estimated.

Keywords:
mechanics of fluids, arch vortex, Particle Image Velocimetry
Fulltext: PDF
DOI: https://doi.org/10.14311/TPFM.2017.003
In Proceedings Topical Problems of Fluid Mechanics 2017, Prague, 2017 Edited by David Šimurda and Tomáš Bodnár, pp. 17-22
ISBN 978-80-87012-61-1 (Print)
ISSN 2336-5781 (Print)
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