Transactions of the Japan Society of Mechanical Engineers Series B
Online ISSN : 1884-8346
Print ISSN : 0387-5016
Velocity Vector Field Measurement of Vortex Ring Using UVP(Fluids Engineering)
Hidekazu KITAURAYuichi MURAIYasushi TAKEDAPeter J. THOMAS
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2010 Volume 76 Issue 772 Pages 2143-2151

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Abstract

Ultrasound Velocity Profiler (UVP) is applied to measurement of two-dimensional velocity vector field of vortex rings in water. The instantaneous flow field passing through the measurement section is reconstructed from spatio-temporal distribution of velocity component obtained along two different ultrasound measurement lines. The method of reconstruction is valid when vortex rings have axisymmetric structure having constant translational velocity at the measurement section. Using this principle, vortex ring subject to background rotation is also presented to discuss the effect of weak Coriolis force on formation process of vortex rings.

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© 2010 The Japan Society of Mechanical Engineers
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