RT Journal Article
SR Electronic
A1 Hyhlík, Tomáš
T1 Method of Vortex Structure Identification in Axisymmetric Flow Field
JF Manufacturing Technology Journal
YR 2015
VO 15
IS 5
SP 842
OP 845
DO 10.21062/ujep/x.2015/a/1213-2489/MT/15/5/842
UL https://journalmt.com/artkey/mft-201505-0017.php
AB The article deals with the analysis of axisymmetric flow field from the point of view of vortex identification. The vortex is identified by using residual vorticity defined in the work [1]. The identification is based on the so called triple decomposition of motion [1]. The idea of vortex identification based on the residual vorticity which is easily applicable in the case of two dimensional flow field is extended to the case of axisymmetric flow. The analyses is based on the decomposition of velocity gradient tensor and on the search of so called basic reference frame which allows to examine clearly the kinematics of the flow field.