0028067 - ÚH 2011 RIV KP eng C - Conference Paper (international conference)
Kolář, Václav
Vortex geometry of a jet-in-crossflow discharge.
Proceedings of the XXXI IAHR congress. Water engineering for the future. Choices and challenges. Seoul: Korea Water Resources Association, 2005, s. 949-956. ISBN 8987898237.
[IAHR Congress /31./. Seoul (KP), 11.09.2005-16.09.2005]
R&D Projects: GA AV ČR IAA2060302
Institutional research plan: CEZ:AV0Z20600510
Keywords : jet in crossflow * discharge * vortex geometry
Subject RIV: BK - Fluid Dynamics

The paper demonstrates that a specific portion of vorticity, the so-called residual vorticity (associated with the local relative rigid-body rotation near a point obtained after extracting the pure shearing part of motion), provides a proper kinematic quantity for the identification of a vortex. In the case of a jet-in-crossflow discharge, the vortex geometry – described by the residual vorticity – is nearly circular, while the vorticity distribution is characterized by the well-known prolonged shape due to a non-local linearly oriented shear.
Permanent Link: http://hdl.handle.net/11104/0118049