Numerical simulations of turbulent natural convection coupled and uncoupled with radiation

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.contributor	Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
dc.contributor.author	Capdevila Paramio, Roser
dc.contributor.author	Lehmkuhl Barba, Oriol
dc.contributor.author	Trias Miquel, Francesc Xavier
dc.contributor.author	Colomer Rey, Guillem
dc.contributor.author	Pérez Segarra, Carlos David
dc.date	2011
dc.identifier.citation	Capdevila, R. [et al.]. Numerical simulations of turbulent natural convection coupled and uncoupled with radiation. A: International Conference on Computational Heat and Mass Transfer. "ICCHMT 2011 : 7th International Conference on Computational Heat and Mass Transfer". Istanbul: 2011, p. 1-8.
dc.identifier.uri	http://hdl.handle.net/2117/15560
dc.language.iso	eng
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Física::Termodinàmica::Física de la transmissió de la calor
dc.subject	Turbulent convective heat transfer
dc.subject	Heat -- Convection -- Mathematical models
dc.subject	Calor -- Convecció -- Models matemàtics
dc.title	Numerical simulations of turbulent natural convection coupled and uncoupled with radiation
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	In the present work, turbulent natural convection in a tall differentially heated cavity of aspect ratio 5:1, filled with air (Pr = 0.7) under a Rayleigh number based on the height of 4.5 · 1010, is studied numerically. Two different situations have been analysed. In the first one, the cavity is filled with a transparent medium. In the second one, the cavity contains a grey participating gas. The turbulent flow is described by means of Large Eddy Simulation (LES) using symmetry-preserving discretizations. Simulations are compared with experimental data available in the literature and with Direct Numerical Simulations (DNS). Surface and gas radiation have been simulated using the Discrete Ordinates Method (DOM). The influence of radiation on fluid flow behaviour has also been analysed.
dc.description.abstract	Peer Reviewed

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