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Head‐on collision of drops—A numerical investigation

dc.contributor.authorNobari, M. R. H.en_US
dc.contributor.authorJan, Y. -J.en_US
dc.contributor.authorTryggvason, G.en_US
dc.date.accessioned2010-05-06T23:34:57Z
dc.date.available2010-05-06T23:34:57Z
dc.date.issued1996-01en_US
dc.identifier.citationNobari, M. R.; Jan, Y.‐J.; Tryggvason, G. (1996). "Head‐on collision of drops—A numerical investigation." Physics of Fluids 8(1): 29-42. <http://hdl.handle.net/2027.42/71337>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/71337
dc.description.abstractThe head‐on collision of equal sized drops is studied by full numerical simulations. The Navier–Stokes equations are solved for the fluid motion both inside and outside the drops using a front tracking/finite difference technique. The drops are accelerated toward each other by a body force that is turned off before the drops collide. When the drops collide, the fluid between them is pushed outward leaving a thin layer bounded by the drop surface. This layer gets progressively thinner as the drops continue to deform, and in several of our calculations we artificially remove this double layer at prescribed times, thus modeling rupture. If no rupture takes place, the drops always rebound, but if the film is ruptured the drops may coalesce permanently or coalesce temporarily and then split again. Although the numerically predicted boundaries between permanent and temporary coalescence are found to be consistent with experimental observations, the exact location of these boundaries in parameter space is found to depend on the time of rupture. © 1996 American Institute of Physics.en_US
dc.format.extent3102 bytes
dc.format.extent366707 bytes
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dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleHead‐on collision of drops—A numerical investigationen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumThe University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan 48109en_US
dc.contributor.affiliationumThe University of Michigan, Department of Mechanical Engineering, Ann Arbor, Michigan 48109‐2121en_US
dc.contributor.affiliationotherInstitute for Computational Mechanics in Propulsion, Lewis Research Center, Cleveland, Ohio 44135en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/71337/2/PHFLE6-8-1-29-1.pdf
dc.identifier.doi10.1063/1.868812en_US
dc.identifier.sourcePhysics of Fluidsen_US
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dc.owningcollnamePhysics, Department of


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