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Erschienen in: Experiments in Fluids 3/2011

01.03.2011 | Research Article

Experimental study of simultaneous measurement of velocity and surface topography: in the wake of a circular cylinder at low Reynolds number

verfasst von: Ivan Ng, Vaibhav Kumar, Gregory J. Sheard, Kerry Hourigan, Andreas Fouras

Erschienen in: Experiments in Fluids | Ausgabe 3/2011

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Abstract

A technique to provide simultaneous measurement on both free surface topography and the velocity vector field of free surface flows is further developed and validated. Testing was performed on the topography measurement by imaging static plastic wave samples over a wide range of amplitudes. Analysis on the accuracy of the topography reconstruction, the sensitivity to noise and the dependence on spatial resolution are presented. The displacement of the free surface is insensitive to noisy input and the sensitivity shows a linear dependence with the sample spacing. Simultaneous measurements of the free surface and associated velocity field in the wake of a circular cylinder are presented for Reynolds numbers between 55 and 100.

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Metadaten
Titel
Experimental study of simultaneous measurement of velocity and surface topography: in the wake of a circular cylinder at low Reynolds number
verfasst von
Ivan Ng
Vaibhav Kumar
Gregory J. Sheard
Kerry Hourigan
Andreas Fouras
Publikationsdatum
01.03.2011
Verlag
Springer-Verlag
Erschienen in
Experiments in Fluids / Ausgabe 3/2011
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-010-0960-7

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