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

Papadimitrakis, I; Psaltaki, M; Markatos, N

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	https://dspace.lib.ntua.gr/xmlui/handle/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