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https://doi.org/10.1063/1.3478976
DC Field | Value | |
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dc.title | Vortex ring with swirl: A numerical study | |
dc.contributor.author | Cheng, M. | |
dc.contributor.author | Lou, J. | |
dc.contributor.author | Lim, T.T. | |
dc.date.accessioned | 2014-06-17T06:38:06Z | |
dc.date.available | 2014-06-17T06:38:06Z | |
dc.date.issued | 2010-09-30 | |
dc.identifier.citation | Cheng, M., Lou, J., Lim, T.T. (2010-09-30). Vortex ring with swirl: A numerical study. Physics of Fluids 22 (9) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3478976 | |
dc.identifier.issn | 10706631 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/61684 | |
dc.description.abstract | In this paper, we use a lattice Boltzmann method to study the effect of swirl on the dynamics of an isolated three-dimensional vortex ring in a viscous incompressible fluid. We focus on a fixed Reynolds number of 800 and vary swirl magnitude and vortex core size. Results show that increasing swirl for a fixed core size or increasing core size for a fixed swirl causes vortex ring to slow down or even travel backward initially. A simplified physical explanation for this dynamic behavior is proposed. Our results further show that while a weak swirl causes vortex filaments to undergo helical winding, a sufficiently strong swirl transforms these windings into convoluted three-dimensional vortex structure with vortex loops trailing behind it. Each of these vortex loops may reconnect with itself, through the process of vortex reconnection, to form a ringlet. © 2010 American Institute of Physics. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.3478976 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | MECHANICAL ENGINEERING | |
dc.description.doi | 10.1063/1.3478976 | |
dc.description.sourcetitle | Physics of Fluids | |
dc.description.volume | 22 | |
dc.description.issue | 9 | |
dc.description.page | - | |
dc.description.coden | PHFLE | |
dc.identifier.isiut | 000282437100036 | |
Appears in Collections: | Staff Publications |
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