3-D oil spill modelling. Natural dispersion and the spreading of oil-water emulsions in the water column

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dc.contributor.author Papadimitrakis, I en
dc.contributor.author Psaltaki, M en
dc.contributor.author Markatos, N en
dc.date.accessioned 2014-03-01T02:01:38Z
dc.date.available 2014-03-01T02:01:38Z
dc.date.issued 2011 en
dc.identifier.issn 11084006 en
dc.identifier.uri http://hdl.handle.net/123456789/29213
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-84858591615&partnerID=40&md5=649943948a19991a83f86c29782dfd40 en
dc.subject Oil dispersion en
dc.subject Oil spill modelling en
dc.subject Oil spills en
dc.subject Oil-water emulsions en
dc.subject Wave breaking en
dc.title 3-D oil spill modelling. Natural dispersion and the spreading of oil-water emulsions in the water column en
heal.type journalArticle en
heal.publicationDate 2011 en
heal.abstract A 3-D hybrid turbulence model, simulating the transport and fate of oil spills in various waters, is used to evaluate the influence of natural dispersion on the spreading of water-in-oil emulsions formed in the water column. The model combines the Navier-Stokes equations for two-phase flows, the RNG k-ε submodel, and parameterized expressions of the basic processes affecting the fate of oil spills. The model also considers the presence of waves, the wind- and wave- induced surface drifts, and the influence of surface wave breaking on the oil spills. Using a stochastic probability model of breaking waves, the loss of surface wave energy into turbulence, due to breaking, is derived and the rate of natural dispersion of oil mass and that of oil-water emulsions formed in the water column is evaluated, under a variety of sea state conditions. Results in the form of oil concentration profiles with depth, graphs showing the variation of the fraction of water (mass) absorbed by the dispersed oil, at various depths and times, as well as graphs showing the oil mass balance, at the sea surface, at various times are compared with counterpart profiles, and graphs obtained from the literature, and useful conclusions are drawn. © 2011 Global NEST Printed in Greece. All rights reserved. en
heal.journalName Global Nest Journal en
dc.identifier.volume 13 en
dc.identifier.issue 4 en
dc.identifier.spage 325 en
dc.identifier.epage 338 en

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