dc.contributor.author | Ghasemi, Abbas | |
dc.contributor.author | Li, Xianguo | |
dc.date.accessioned | 2018-11-21 14:12:43 (GMT) | |
dc.date.available | 2018-11-21 14:12:43 (GMT) | |
dc.date.issued | 2016-11-01 | |
dc.identifier.uri | https://dx.doi.org/10.1007/s12650-016-0345-y | |
dc.identifier.uri | http://hdl.handle.net/10012/14172 | |
dc.description | The final publication is available at Springer via https://dx.doi.org/10.1007/s12650-016-0345-y | en |
dc.description.abstract | The impact process and the consequent two-phase interaction for a compressible subsonic starting gas jet colliding on a multi-plume spray are investigated using large eddy simulation with Eulerian/Lagrangian multiphase approach, and the λ 2 criterion is used to visualize the temporal and spatial evolution of the vortical structures in the gas field. It is shown that before the impact a leading tip vortex ring is followed by smaller vortex rings in the quasi-steady region of the starting jet while the vortical structures inside the spray plumes known as spray-induced air jets are formed. After the impact the leading tip vortex ring and the following rings as well as spray-induced air jet vortices start to deform and eventually break down into smaller elongated vortex filaments. Unlike the injection of multi-plume sprays into the core of a steady cross flow gas jet, spray droplets are dispersed in a larger volume in all directions when impacted by the starting gas jet, beneficial for two-phase mixing enhancement. A pair of vortex rings is also observed merging into a new ring before reaching the impact zone.Graphical abstract Open image in new window | en |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada ["Discovery Grant"] | en |
dc.language.iso | en | en |
dc.publisher | Springer | en |
dc.subject | Large eddy simulation (LES) | en |
dc.subject | Spray | en |
dc.subject | Starting jet | en |
dc.subject | Vortex ring | en |
dc.title | Vortex break-down during the impact of a starting subsonic compressible gas jet on a multi-plume spray | en |
dc.type | Article | en |
dcterms.bibliographicCitation | Ghasemi, A., & Li, X. (2016). Vortex break-down during the impact of a starting subsonic compressible gas jet on a multi-plume spray. Journal of Visualization, 19(4), 679–689. doi:10.1007/s12650-016-0345-y | en |
uws.contributor.affiliation1 | Faculty of Engineering | en |
uws.contributor.affiliation2 | Mechanical and Mechatronics Engineering | en |
uws.typeOfResource | Text | en |
uws.typeOfResource | Text | en |
uws.peerReviewStatus | Reviewed | en |
uws.scholarLevel | Faculty | en |