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Investigating vortical dipolar flows using particle image velocimetry: an experiment for the advanced undergraduate laboratory
 

Summary: 1
Investigating vortical dipolar flows using particle image velocimetry: an
experiment for the advanced undergraduate laboratory
Yakov Afanasyeva)
Department of Physics and Physical Oceanography,
Memorial University of Newfoundland, St. John's,
Newfoundland, Canada A1B 3X7
(Submitted 1 May 2001)
This note describes a laboratory experiment designed to
study vortex dipoles, a fascinating phenomenon that occurs
in geophysical and industrial turbulent flows. A particle
image velocimetry (PIV) measurement system is used to
measure the velocity and vorticity fields in the flow. The
apparatus required for the experiment is inexpensive and
easily constructed.
1. INTRODUCTION
A vortex dipole is a jet flow with a system of two vortices of opposite sign at its
front. Vortex dipoles are fundamental elements of the complex chaotic flows associated
2
with the term "two-dimensional turbulence". The dipoles are widespread flows that occur

  

Source: Afanassiev, Iakov - Department of Physics and Physical Oceanography, Memorial University of Newfoundland

 

Collections: Geosciences