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Títol: Turbulent natural convection in a differentially heated cavity of aspect ratio 5 filled with non-participating and participating grey media
Autor: Capdevila Paramio, Roser
Lehmkuhl Barba, Oriol
Trias Miquel, Francesc Xavier
Pérez Segarra, Carlos David
Colomer Rey, Guillem
Altres autors/autores: Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
Matèries: Àrees temàtiques de la UPC::Física::Termodinàmica::Física de la transmissió de la calor
Turbulent convective heat transfer
Fluid dynamics
Mathematical physics
Física matemàtica
Dinàmica de fluids
Turbulències
Tipus de document: Conference lecture
Descripció: 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 centerdot 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.
Altres identificadors i accés: Capdevila, R. [et al.]. Turbulent natural convection in a differentially heated cavity of aspect ratio 5 filled with non-participating and participating grey media. A: European Turbulence Conference. "Proceedings of the 13 European Turbulence Conference". Warsaw: 2011, p. 1-10.
http://hdl.handle.net/2117/14825
10.1088/1742-6596/318/4/042048
Disponible al dipòsit:E-prints UPC
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