The capabilities of Fire Dynamics Simulator (FDS), a well established LES code for fire dynamics assessment, to correctly predict also a buoyancy driven flow in a small square cavity are discussed in this paper. The numerical results are compared with a detailed experimental benchmark available in the literature, where the flow field in a 0.75 m high, 0.75 m wide and 1.5 m deep cavity was extensively measured. Both the hot wall of the cavity and the cold one were isothermal (respectively at 50 °C and 10 °C, giving a Rayleigh number of 1:58 10^9.
Validation of Fire Dynamics Simulator (FDS) for natural convection in a differentially heated square cavity
PACHERA, MATTEO;BRUNELLO, PIERFRANCESCO;RACITI CASTELLI, MARCO
2014
Abstract
The capabilities of Fire Dynamics Simulator (FDS), a well established LES code for fire dynamics assessment, to correctly predict also a buoyancy driven flow in a small square cavity are discussed in this paper. The numerical results are compared with a detailed experimental benchmark available in the literature, where the flow field in a 0.75 m high, 0.75 m wide and 1.5 m deep cavity was extensively measured. Both the hot wall of the cavity and the cold one were isothermal (respectively at 50 °C and 10 °C, giving a Rayleigh number of 1:58 10^9.File in questo prodotto:
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