Simulation of buoyancy-induced turbulent flow from a hot horizontal jet

Handle URI:
http://hdl.handle.net/10754/563378
Title:
Simulation of buoyancy-induced turbulent flow from a hot horizontal jet
Authors:
El-Amin, Mohamed ( 0000-0002-1099-2299 ) ; Sun, Shuyu ( 0000-0002-3078-864X ) ; Salama, Amgad ( 0000-0002-4463-1010 )
Abstract:
Experimental visualizations and numerical simulations of a horizontal hot water jet entering cold water into a rectangular storage tank are described. Three different temperature differences and their corresponding Reynolds numbers are considered. Both experimental visualization and numerical computations are carried out for the same flow and thermal conditions. The realizable k - ε model is used for modeling the turbulent flow while the buoyancy is modeled using the Boussinesq approximation. Polynomial approximations of the water properties are used to compare with the Boussinesq approximation. Numerical solutions are obtained for unsteady flow while pressure, velocity, temperature and turbulence distributions inside the water tank as well as the Froude number are analyzed. The experimental visualizations are performed at intervals of five seconds for all different cases. The simulated results are compared with the visualized results, and both of them show the stratification phenomena and buoyancy force effects due to temperature difference and density variation. After certain times, depending on the case condition, the flow tends to reach a steady state. © 2014 Publishing House for Journal of Hydrodynamics.
KAUST Department:
Computational Transport Phenomena Lab; Physical Sciences and Engineering (PSE) Division; Environmental Science and Engineering Program; Earth Science and Engineering Program
Publisher:
Elsevier BV
Journal:
Journal of Hydrodynamics, Ser. B
Issue Date:
Feb-2014
DOI:
10.1016/S1001-6058(14)60012-3
Type:
Article
ISSN:
10016058
Appears in Collections:
Articles; Environmental Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Earth Science and Engineering Program; Computational Transport Phenomena Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorEl-Amin, Mohameden
dc.contributor.authorSun, Shuyuen
dc.contributor.authorSalama, Amgaden
dc.date.accessioned2015-08-03T11:47:05Zen
dc.date.available2015-08-03T11:47:05Zen
dc.date.issued2014-02en
dc.identifier.issn10016058en
dc.identifier.doi10.1016/S1001-6058(14)60012-3en
dc.identifier.urihttp://hdl.handle.net/10754/563378en
dc.description.abstractExperimental visualizations and numerical simulations of a horizontal hot water jet entering cold water into a rectangular storage tank are described. Three different temperature differences and their corresponding Reynolds numbers are considered. Both experimental visualization and numerical computations are carried out for the same flow and thermal conditions. The realizable k - ε model is used for modeling the turbulent flow while the buoyancy is modeled using the Boussinesq approximation. Polynomial approximations of the water properties are used to compare with the Boussinesq approximation. Numerical solutions are obtained for unsteady flow while pressure, velocity, temperature and turbulence distributions inside the water tank as well as the Froude number are analyzed. The experimental visualizations are performed at intervals of five seconds for all different cases. The simulated results are compared with the visualized results, and both of them show the stratification phenomena and buoyancy force effects due to temperature difference and density variation. After certain times, depending on the case condition, the flow tends to reach a steady state. © 2014 Publishing House for Journal of Hydrodynamics.en
dc.publisherElsevier BVen
dc.subjectheat storageen
dc.subjectheat transferen
dc.subjectjeten
dc.subjectrealizable k - ε turbulence modelen
dc.subjectturbulent flowen
dc.titleSimulation of buoyancy-induced turbulent flow from a hot horizontal jeten
dc.typeArticleen
dc.contributor.departmentComputational Transport Phenomena Laben
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalJournal of Hydrodynamics, Ser. Ben
kaust.authorEl-Amin, Mohameden
kaust.authorSun, Shuyuen
kaust.authorSalama, Amgaden
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