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Vortex geometry of a jet-in-crossflow discharge
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SYSNO ASEP 0028067 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Vortex geometry of a jet-in-crossflow discharge Author(s) Kolář, Václav (UH-J) SAI, ORCID, RID Source Title Proceedings of the XXXI IAHR congress. Water engineering for the future. Choices and challenges : Proceedings of the XXXI IAHR congress. - Seoul : Korea Water Resources Association, 2005 - ISBN 8987898237 Pages s. 949-956 Number of pages 8 s. Action IAHR Congress /31./ Event date 11.09.2005-16.09.2005 VEvent location Seoul Country KP - Korea Event type WRD Language eng - English Country KP - Korea Keywords jet in crossflow ; discharge ; vortex geometry Subject RIV BK - Fluid Dynamics R&D Projects IAA2060302 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20600510 - UH-J (2005-2011) Annotation 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. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2011
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