Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 397-404 |
| Journal | European Journal of Mechanics. B, Fluids |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 |
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Dipole-wall collision in a shallow fluid. / Cieslik, A.R.; Akkermans, R.A.D.; Kamp, L.P.J.; Clercx, H.J.H.; Heijst, van, G.J.F.
In: European Journal of Mechanics. B, Fluids, Vol. 28, No. 3, 2009, p. 397-404.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Dipole-wall collision in a shallow fluid
AU - Cieslik, A.R.
AU - Akkermans, R.A.D.
AU - Kamp, L.P.J.
AU - Clercx, H.J.H.
AU - Heijst, van, G.J.F.
PY - 2009
Y1 - 2009
N2 - Recent experiments on a freely evolving dipolar vortex in a homogeneous shallow fluid layer have clearly shown the importance of vertical secondary flows on top of the primary horizontal motion. The present contribution focuses on the interaction of such a dipolar vortex with a sidewall. Accurate measurements of the three velocity components in a single horizontal plane have been performed using the Stereoscopic Particle Image Velocimetry (SPIV) technique. The experimental results, supported by numerical simulations, indicate that the complex vertical structure of a shallow-layer dipole becomes even more complex during the collision process. The observed growth of the kinetic energy associated with enhanced vertical motion pinpoints the strong discrepancies between vortex-wall interactions in shallow fluid layers and in purely two-dimensional wall-bounded turbulence.
AB - Recent experiments on a freely evolving dipolar vortex in a homogeneous shallow fluid layer have clearly shown the importance of vertical secondary flows on top of the primary horizontal motion. The present contribution focuses on the interaction of such a dipolar vortex with a sidewall. Accurate measurements of the three velocity components in a single horizontal plane have been performed using the Stereoscopic Particle Image Velocimetry (SPIV) technique. The experimental results, supported by numerical simulations, indicate that the complex vertical structure of a shallow-layer dipole becomes even more complex during the collision process. The observed growth of the kinetic energy associated with enhanced vertical motion pinpoints the strong discrepancies between vortex-wall interactions in shallow fluid layers and in purely two-dimensional wall-bounded turbulence.
U2 - 10.1016/j.euromechflu.2008.10.002
DO - 10.1016/j.euromechflu.2008.10.002
M3 - Article
VL - 28
SP - 397
EP - 404
JO - European Journal of Mechanics. B, Fluids
JF - European Journal of Mechanics. B, Fluids
SN - 0997-7546
IS - 3
ER -