Validation of turbulence models in heavy gas dispersion over obstacles

Sklavounos, S; Rigas, F

dc.contributor.author	Sklavounos, S	en
dc.contributor.author	Rigas, F	en
dc.date.accessioned	2014-03-01T01:21:41Z
dc.date.available	2014-03-01T01:21:41Z
dc.date.issued	2004	en
dc.identifier.issn	0304-3894	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16314
dc.subject	CFD	en
dc.subject	Complex terrain	en
dc.subject	Dispersion simulation	en
dc.subject	Heavy gas	en
dc.subject	Obstructed flow	en
dc.subject	Turbulence modeling	en
dc.subject.classification	Engineering, Environmental	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Environmental Sciences	en
dc.subject.other	Accident prevention	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Computer simulation	en
dc.subject.other	Health	en
dc.subject.other	Risk assessment	en
dc.subject.other	Turbulence	en
dc.subject.other	Heavy gases	en
dc.subject.other	Toxic gases	en
dc.subject.other	Hazardous materials	en
dc.subject.other	complex terrain	en
dc.subject.other	computational fluid dynamics	en
dc.subject.other	dispersion	en
dc.subject.other	gas	en
dc.subject.other	hazardous material	en
dc.subject.other	analytic method	en
dc.subject.other	article	en
dc.subject.other	chemical reaction	en
dc.subject.other	comparative study	en
dc.subject.other	density	en
dc.subject.other	dispersion	en
dc.subject.other	gas	en
dc.subject.other	mathematical model	en
dc.subject.other	molecular model	en
dc.subject.other	turbulent flow	en
dc.subject.other	vapor	en
dc.subject.other	Accidents	en
dc.subject.other	Air Movements	en
dc.subject.other	Gases	en
dc.subject.other	Hazardous Substances	en
dc.subject.other	Models, Theoretical	en
dc.subject.other	Public Health	en
dc.title	Validation of turbulence models in heavy gas dispersion over obstacles	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhazmat.2004.01.005	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhazmat.2004.01.005	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	Accidental release and dispersion of toxic gases were always major hazards for public health and safety that process industries had to deal with. Real terrain dispersion simulation for risk analysis purposes poses specific difficulties related to complex turbulence phenomena development. especially when obstructions are found into the flow region. In this paper, several turbulence models are tested and compared against experimental data of dense vapor dispersion, in order to decide for their suitability for simulating such flows. Computations were carried out using the computational fluid dynamics (CFD) code CFX 5.6, while experimental data were obtained from Thorney Island large scale field trials. Computational results showed good agreement with experimental measurements indicating that CFDs provide a reliable means of estimating gas dispersion in real terrains. (C) 2004 Elsevier B.V All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hazardous Materials	en
dc.identifier.doi	10.1016/j.jhazmat.2004.01.005	en
dc.identifier.isi	ISI:000221065000002	en
dc.identifier.volume	108	en
dc.identifier.issue	1-2	en
dc.identifier.spage	9	en
dc.identifier.epage	20	en