Vortex Shedding Observations Using Magnetic
Resonance Imaging, Flow Visualisation And
Computational Fluid Dynamics
Author(s)
Y. Noguchi, I. Marzouqa, D.R. Hose, M.N.J. Paley
I.D. Wilkinson, J.W. Fenner and P.D. Griffiths
Abstract
A study to investigate the use of MRI for unsteady flow measurements has been
made. Conventional MRI flow studies can give images, which lead to an
overestimation of the length of stenosis. This is due to the flow disturbed by the
stenosis. However the authors believed that the flow downstream of a stenosis
might be a periodic flow rather than fully turbulent flow. The flow with Karman
vortex sheet is chosen to demonstrate the capability of MRI to capture periodic
flows. The results are compared with flow visualisation experiments,
Computational Fluid Dynamics and analytical results. They all agree well and
Keywords
Related Book
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