Study of turbulent natural convection in a tall differentially heated cavity filled with either non-participating, participating grey and participating semigrey media
Document typeConference report
PublisherUniversité de Poitiers
Rights accessRestricted access - publisher's policy
Turbulent natural couvection in a tall differentially heated cavity of aspect ratio 5:1, filled with air under a Rayleigh number based on the height of 4.5.10(10), is studied numerically. Three different situations have been analysed. In the first one, the cavity is filled with a transparent medium. In the second one, the cavity is filled with a semigrey participating mixture, of air mid water vapour. In the List (me 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 been analysed.
CitationCapdevila, R., Lehmkuhl, O., Colomer, G., Perez, C. Study of turbulent natural convection in a tall differentially heated cavity filled with either non-participating, participating grey and participating semigrey media. A: European Thermal Sciences Conference. "6th European Thermal Sciences Conference (Eurotherm)". Poitiers: Université de Poitiers, 2012, p. 1-8.