Searched for: subject%3A%22Vortex%255C+flow%22
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van Nieuwenhuizen, Christian (author)
The added drag on a buoyant body traveling in a solid-body rotation flow has been rigorously studied over the last century with G.I. Taylor being the first one to describe it in 1922, a hundred years ago. A recent publication by Duinmeijer (2021) investigated the capacity of free-surface vortices to transport solids as a practical application to...
master thesis 2022
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Duinmeijer, S.P.A. (author), Oldenziel, G. (author), Clemens, F.H.L.R. (author)
In order to analyse the flow characteristics of free-surface vortexes and to validate the Burgers vortex model by using stereo particle image velocimetry, experiments are conducted in a 600 mm diameter vortex tank. Measured axial velocities indicate that 10–25% of the flow is transported through the vortex core. The velocity profiles show that...
journal article 2020
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Elbaz, Mohammed S.M. (author), van der Geest, Rob J. (author), Calkoen, Emmeline E. (author), de Roos, Albert (author), Lelieveldt, B.P.F. (author), Roest, Arno A.W. (author), Westenberg, Jos J.M. (author)
Purpose To evaluate viscous energy loss and the association with three-dimensional (3D) vortex ring formation in left ventricular (LV) blood flow during diastolic filling. Theory and Methods Thirty healthy volunteers were compared with 32 patients with corrected atrioventricular septal defect as unnatural mitral valve morphology and inflow are...
journal article 2017
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Van de Meerendonk, R. (author)
Increasing interest in the field of micro air vehicles has stimulated research activities regarding biological flapping-wing flight. An important characteristic of biological flapping-wing flight that is not commonly taken into account in mechanical model simulations is the influence of wing flexibility. This experimental study explores the flow...
master thesis 2016
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van de Meerendonk, R. (author), Perçin, M. (author), van Oudheusden, B.W. (author)
This study explores the flow field and fluid-dynamic loads generated by revolving low-aspect-ratio flat plate wings undergoing a revolving motion starting from rest. Three wings with different degree of chordwise flexural stiffness (i.e., rigid, moderate flexibility and high flexibility) have been tested in order to investigate the influence of...
conference paper 2016
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Yang, Y. (author), Zhou, T (author), Sciacchitano, A. (author), Veldhuis, L.L.M. (author), Eitelberg, G. (author)
The aerodynamic operating conditions of a propeller can include complex situations where vorticity from sources upstream can enter the propeller plane. In general, when the vorticity enters in a concentrated form of a vortex, the interaction between the vortex and blade is referred to as blade–vortex interaction or BVI. The interaction may...
journal article 2016
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Elbaz, M.S.M. (author), Calkoen, E.E. (author), Westenberg, J.J.M. (author), Lelieveldt, B.P.F. (author), Roest, A.A.W. (author), Van der Geest, R.J. (author)
Background LV diastolic vortex formation has been suggested to critically contribute to efficient blood pumping function, while altered vortex formation has been associated with LV pathologies. Therefore, quantitative characterization of vortex flow might provide a novel objective tool for evaluating LV function. The objectives of this study...
journal article 2014
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Borrel, M. (author)
In this preliminary study, we compare the behavior of two classical numerical approaches in compressible fluid dynamics , the MUSCL and the Discontinuous Galerkin (DG) method, applied to aeroacoustics and vortex computation, these two fields being related as noise is often produced from vortex fluctuations. The calculation of the unsteady...
conference paper 2006
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Donohoe, S.R. (author)
doctoral thesis 1996
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Houtman, E.M. (author), Bakker, P.G. (author), de Vries, E. (author), van den Berg, J.C. (author)
report 1994
Searched for: subject%3A%22Vortex%255C+flow%22
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