A Lagrangian approach to identifying vortex pinch-off
نویسندگان
چکیده
منابع مشابه
A Lagrangian approach to identifying vortex pinch-off.
A criterion for identifying vortex ring pinch-off based on the Lagrangian coherent structures (LCSs) in the flow is proposed and demonstrated for a piston-cylinder arrangement with a piston stroke to diameter (L/D) ratio of approximately 12. It is found that the appearance of a new disconnected LCS and the termination of the original LCS are indicative of the initiation of vortex pinch-off. The...
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ژورنال
عنوان ژورنال: Chaos: An Interdisciplinary Journal of Nonlinear Science
سال: 2010
ISSN: 1054-1500,1089-7682
DOI: 10.1063/1.3275499