Geodesic
Optical measurement of a fluid velocity field around a falling plate
Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki, Tome 25 (2015) no. 4, pp. 554-567 Cet article a éte moissonné depuis la source Math-Net.Ru

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The paper is devoted to the experimental verification of the Andersen–Pesavento–Wang model describing the falling of a heavy plate through a resisting medium. As a main research method the authors have used video filming of a falling plate with PIV measurement of the velocity of surrounding fluid flows. The trajectories of plates and streamlines were determined and oscillation frequencies were estimated using experimental results. A number of experiments for plates of various densities and sizes were performed. The trajectories of plates made of plastic are qualitatively similar to the trajectories predicted by the Andersen–Pesavento–Wang model. However, measured and computed frequencies of oscillations differ significantly. For a plate made of high carbon steel the results of experiments are quantitatively and qualitatively in disagreement with computational results.
Keywords: PIV – Particle Image Velocimetry, Maxwell problem, model of Andersen–Pesavento–Wang. 
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     title = {Optical measurement of a~fluid velocity field around a~falling plate},
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E. V. Vetchanin; A. I. Klenov. Optical measurement of a fluid velocity field around a falling plate. Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki, Tome 25 (2015) no. 4, pp. 554-567. http://geodesic.mathdoc.fr/item/VUU_2015_25_4_a11/

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