Mostra el registre d'ítem simple

dc.contributor.authorMushyam, Aditya
dc.contributor.authorBergadà Granyó, Josep Maria
dc.contributor.authorNayeri, C. Navid
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2016-02-02T14:59:17Z
dc.date.available2016-11-23T01:30:25Z
dc.date.issued2016-08
dc.identifier.citationMushyam, A., Bergadà, J.M., Nayeri, C.N. A numerical investigation of laminar flow over a backward facing inclined step. "Meccanica", Agost 2016, vol. 51, núm. 8, p.1739-1762.
dc.identifier.issn0025-6455
dc.identifier.urihttp://hdl.handle.net/2117/82445
dc.descriptionThis is a copy of the author 's final draft version of an article published in the journal Meccanica. The final publication is available at Springer via http://dx.doi.org/10.1007/s11012-015-0335-5
dc.description.abstractThe aim of the present study is to analyze the two dimensional flow over a backward-facing-inclined step in laminar flow regime. The inspiration for the present work is derived from the fact that in automobile industry, analyzing the flow over an inclined step shall help in understanding the characteristics of the rear vehicle wake. A considerable percentage of the energy needed to propel the vehicle is dissipated by the vorticity generated in the rear of the vehicle, hence it is of utmost importance to understand the properties of the wake. In the present paper, the flow over a backward step is initially analyzed and the results are compared with the existing literature to validate the code developed. The inclined step simulations were carried out by varying different aspects of the geometry i.e. different tilts, several upstream lengths and a range of different Reynolds numbers. Critical Reynolds numbers for vortex shedding in the wake of different step inclinations have been analyzed for all cases studied. A discussion on the time-averaged drag and lift coefficients as a function of Reynolds number and for all cases undertaken, are among the results presented. Among the conclusions, it is particularly interesting to point out that the inclination angle of 15° was found to be the critical angle for vortex shedding, after which critical Reynolds number remains constant.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Física::Física de fluids
dc.subject.lcshFluid dynamics
dc.subject.lcshLaminar flow
dc.subject.lcshBoundary layer
dc.subject.otherbackward facing step
dc.subject.otherboundary layer
dc.subject.othercritical Reynolds number
dc.subject.otherinclined step
dc.subject.otherlaminar flow
dc.subject.otherrolling up shear layer
dc.titleA numerical investigation of laminar flow over a backward facing inclined step
dc.typeArticle
dc.subject.lemacDinàmica de fluids
dc.subject.lemacFlux laminar
dc.subject.lemacCapa límit (Dinàmica de fluids)
dc.identifier.doi10.1007/s11012-015-0335-5
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s11012-015-0335-5
dc.rights.accessOpen Access
local.identifier.drac17429496
dc.description.versionPostprint (author's final draft)
local.citation.authorMushyam, A.; Bergadà, J.M.; Nayeri, C.N.
local.citation.publicationNameMeccanica
local.citation.volume51
local.citation.number8
local.citation.startingPage1739
local.citation.endingPage1762


Fitxers d'aquest items

Thumbnail

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple