Analysis of a turbulent buoyant confined jet modeled using realizable k-ε model

Handle URI:
http://hdl.handle.net/10754/561559
Title:
Analysis of a turbulent buoyant confined jet modeled using realizable k-ε model
Authors:
El-Amin, Mohamed ( 0000-0002-1099-2299 ) ; Sun, Shuyu ( 0000-0002-3078-864X ) ; Heidemann, Wolfgang; Müller-Steinhagen, Hans M.
Abstract:
Through this paper, analyses of components of the unheated/heated turbulent confined jet are introduced and some models to describe them are developed. Turbulence realizable k-ε model is used to model the turbulence of this problem. Numerical simulations of 2D axisymmetric vertical hot water confined jet into a cylindrical tank have been done. Solutions are obtained for unsteady flow while velocity, pressure, temperature and turbulence distributions inside the water tank are analyzed. For seeking verification, an experiment was conducted for measuring of the temperature of the same system, and comparison between the measured and simulated temperature shows a good agreement. Using the simulated results, some models are developed to describe axial velocity, centerline velocity, radial velocity, dynamic pressure, mass flux, momentum flux and buoyancy flux for both unheated (non-buoyant) and heated (buoyant) jet. Finally, the dynamics of the heated jet in terms of the plume function which is a universal quantity and the source parameter are studied and therefore the maximum velocity can be predicted theoretically. © 2010 Springer-Verlag.
KAUST Department:
Computational Transport Phenomena Lab; Physical Sciences and Engineering (PSE) Division; Environmental Science and Engineering Program
Publisher:
Springer Verlag
Journal:
Heat and Mass Transfer/Waerme- und Stoffuebertragung
Issue Date:
13-Jun-2010
DOI:
10.1007/s00231-010-0625-3
Type:
Article
ISSN:
09477411
Sponsors:
The first author would like to thank the Alexander von Humboldt (AvH) Foundation, Germany for funding the post-doctoral fellowship.
Appears in Collections:
Articles; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Computational Transport Phenomena Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorEl-Amin, Mohameden
dc.contributor.authorSun, Shuyuen
dc.contributor.authorHeidemann, Wolfgangen
dc.contributor.authorMüller-Steinhagen, Hans M.en
dc.date.accessioned2015-08-02T09:14:12Zen
dc.date.available2015-08-02T09:14:12Zen
dc.date.issued2010-06-13en
dc.identifier.issn09477411en
dc.identifier.doi10.1007/s00231-010-0625-3en
dc.identifier.urihttp://hdl.handle.net/10754/561559en
dc.description.abstractThrough this paper, analyses of components of the unheated/heated turbulent confined jet are introduced and some models to describe them are developed. Turbulence realizable k-ε model is used to model the turbulence of this problem. Numerical simulations of 2D axisymmetric vertical hot water confined jet into a cylindrical tank have been done. Solutions are obtained for unsteady flow while velocity, pressure, temperature and turbulence distributions inside the water tank are analyzed. For seeking verification, an experiment was conducted for measuring of the temperature of the same system, and comparison between the measured and simulated temperature shows a good agreement. Using the simulated results, some models are developed to describe axial velocity, centerline velocity, radial velocity, dynamic pressure, mass flux, momentum flux and buoyancy flux for both unheated (non-buoyant) and heated (buoyant) jet. Finally, the dynamics of the heated jet in terms of the plume function which is a universal quantity and the source parameter are studied and therefore the maximum velocity can be predicted theoretically. © 2010 Springer-Verlag.en
dc.description.sponsorshipThe first author would like to thank the Alexander von Humboldt (AvH) Foundation, Germany for funding the post-doctoral fellowship.en
dc.publisherSpringer Verlagen
dc.titleAnalysis of a turbulent buoyant confined jet modeled using realizable k-ε modelen
dc.typeArticleen
dc.contributor.departmentComputational Transport Phenomena Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalHeat and Mass Transfer/Waerme- und Stoffuebertragungen
dc.contributor.institutionInstitute for Thermodynamics and Thermal Engineering (ITW), University of Stuttgart, Pfaffenwaldring 6, Stuttgart 70550, Germanyen
dc.contributor.institutionDepartment of Mathematics, Aswan Faculty of Science, South Valley University, Aswan, Egypten
kaust.authorEl-Amin, Mohameden
kaust.authorSun, Shuyuen
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