Pollutant dispersion over a triangular ridge: A numerical study

Mouzakis, FN; Bergeles, G

dc.contributor.author	Mouzakis, FN	en
dc.contributor.author	Bergeles, G	en
dc.date.accessioned	2014-03-01T01:08:29Z
dc.date.available	2014-03-01T01:08:29Z
dc.date.issued	1991	en
dc.identifier.issn	0004-6981	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10526
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026055555&partnerID=40&md5=5256bdb08e9c1dbe77dad07c04428f5f	en
dc.subject	DIFFUSION FROM POINT SOURCE	en
dc.subject	MATERIAL DISPERSION	en
dc.subject	ORTHOGONAL CURVILINEAR COORDINATE SYSTEM	en
dc.subject	FINITE DIFFERENCING	en
dc.subject	TURBULENCE MODEL	en
dc.subject.classification	Environmental Sciences	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.other	Aerodynamics - Turbulent	en
dc.subject.other	Flow of Fluids - Diffusion	en
dc.subject.other	Mathematical Techniques - Finite Difference Method	en
dc.subject.other	Pollutant Dispersion	en
dc.subject.other	Turbulence Models	en
dc.subject.other	Air Pollution	en
dc.subject.other	article	en
dc.subject.other	atmospheric dispersion	en
dc.subject.other	model	en
dc.subject.other	turbulent flow	en
dc.subject.other	Air Pollution	en
dc.subject.other	Complex Terrain	en
dc.subject.other	Dispersion Modelling	en
dc.subject.other	Turbulent Diffusion	en
dc.subject.other	diffusion	en
dc.subject.other	numerical study	en
dc.subject.other	point source	en
dc.subject.other	pollutant dispersion	en
dc.subject.other	triangular ridge	en
dc.subject.other	turbulence model	en
dc.title	Pollutant dispersion over a triangular ridge: A numerical study	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	Predictions are presented of the inert pollutant dispersion from a continuous point source over a two-dimensional ridge with triangular cross-section; the two-dimensional flow field is obtained after numerical solution of the time-average Reynolds equations, and the three-dimensional concentration field from the transport equation of the material; the equations are written on an orthogonal curvilinear coordinate system and transformed into finite difference form after discretization in physical space; turbulence is simulated by the two-equation κ-ε model of the turbulence. In the first part of the paper, the numerical method is discussed and in the second part the results are presented and compared with available laboratory data. The results are of engineering importance and clarify the transport mechanisms of pollutant as the pollutant trajectory is greatly affected by the position of the pollution source relative to the surface obstruction.Predictions are presented of the inert pollutant dispersion from a continuous point source over a two-dimensional ridge with triangular cross-section; the two-dimensional flow field is obtained after numerical solution of the time-averaged Reynolds equations, and the three-dimensional concentration field from the transport equation of the material; the equations are written on an orthogonal curvilinear coordinate system and transformed into finite difference form after discretization in physical space; turbulence is simulated by the two-equation k-ε model for the turbulence. In the first part of the paper, the numerical method is discussed and in the second part the results are presented and compared with available laboratory data. The results are of engineering importance and clarify the transport mechanisms of pollutant as the pollutant trajectory is greatly affected by the position of the pollution source relative to the surface obstruction.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Atmospheric Environment - Part A General Topics	en
dc.identifier.isi	ISI:A1991EZ97500018	en
dc.identifier.volume	25 A	en
dc.identifier.issue	2	en
dc.identifier.spage	371	en
dc.identifier.epage	379	en