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Title:Velocity-vorticity formulation for 3D natural convection in an inclined enclosure by BEM
Authors:ID Ravnik, Jure (Author)
ID Škerget, Leopold (Author)
ID Žunič, Zoran (Author)
Files:URL http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.01.018
 
Language:English
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:A natural convection phenomenon is studied in cubic and parallelepipedal inclined enclosures. The simulation of coupled laminar viscous flow and heat transfer is performed using a novel algorithm based on a combination of singledomain Boundary element method (BEM) and subdomain BEM. The algorithm solves the velocity-vorticity formulation of the incompressible Navier-Stokes equations coupled with the energy equation using the Boussinesq approximation.The subdomain BEM is used to solve the kinematics equation, the vorticity transport equation and the energy equation. The boundary vorticity values, which are needed as boundary conditions for the vorticity transport equation, are calculated by singe domain BEM solution of the kinematics equation. Simulation results are compared with benchmark results for a cubic inclined enclosure for Rayleigh number values ▫$10^3<Ra<10^5$▫. The results for an inclined enclosure with width to height ratio 1:2 are also presented.
Keywords:podobmočna metoda robnih elementov, hitrostno-vrtinčna formulacija, laminarni tok viskozne tekočine, naravna konvekcija, nagnjena kotanja, fluid mechanics, subdomain boundary element method, velocity-vorticity formulation, laminar viscous fluid flow, natural convection, inclined enclosure
Year of publishing:2008
PID:20.500.12556/DKUM-26178-dd5cc37a-f727-a235-414b-42144891d5ad New window
UDC:532.5:519.61/.64
ISSN on article:0017-9310
COBISS.SI-ID:12278550 New window
NUK URN:URN:SI:UM:DK:POAVDN5M
Publication date in DKUM:31.05.2012
Views:2686
Downloads:100
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:International journal of heat and mass transfer
Shortened title:Int. j. heat mass transfer
Publisher:Pergamon Press
ISSN:0017-9310
COBISS.SI-ID:3064335 New window

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