Experimental characterization of the 3D dynamics of a laminar shallow vortex dipole |
| |
Authors: | Laurent Lacaze Pierre Brancher Olivier Eiff Ludovic Labat |
| |
Institution: | 1. Université de Toulouse; INPT, UPS; IMFT (Institut de Mécanique des Fluides de Toulouse);, Allée Camille Soula, 31400, Toulouse, France 2. CNRS; IMFT;, 31400, Toulouse, France
|
| |
Abstract: | Experimental results on the dynamics of a vortex dipole evolving in a shallow fluid layer are presented. In particular, the
generation of a spanwise vortex at the front of the dipole is observed in agreement with previous experiments at larger Reynolds
numbers. The results show that this secondary vortex is of comparable strength to the dipole. The present physical analysis
suggests that the origin of this structure involves the stretching induced by the dipole of the boundary-layer vorticity generated
by the dipole’s advection over the no-slip bottom. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|