A time-accurate Finite Volume method is used to investigate the two-dimensional buoyant flow in a closed cabinet containing two vertical heating plates. These are parallel, and form a channel at the centre of the cabinet enclosure. The cases of isothermal plates, and of uniform heat generation within them, are both considered for two values, 1 x 10(5) and 1 x 10(7), of the leading non-dimensional parameter, the Grashof number. Air (Pr = 0.71) is considered as the working fluid. Transient and long term thermal and flow behaviours are investigated. Steady-state solutions are asymptotically found at the lower Gr-value. However, time-dependent long-term solutions are predicted at Gr = 1 x 10(7) .
Numerical simulation of time-dependent buoyant flows in an enclosed vertical channel / Barozzi, Giovanni Sebastiano; Corticelli, Mauro Alessandro; E., Nobile. - In: HEAT AND MASS TRANSFER. - ISSN 0947-7411. - STAMPA. - 35 (2):(1999), pp. 89-99. [10.1007/s002310050302]
Numerical simulation of time-dependent buoyant flows in an enclosed vertical channel
BAROZZI, Giovanni Sebastiano;CORTICELLI, Mauro Alessandro;
1999
Abstract
A time-accurate Finite Volume method is used to investigate the two-dimensional buoyant flow in a closed cabinet containing two vertical heating plates. These are parallel, and form a channel at the centre of the cabinet enclosure. The cases of isothermal plates, and of uniform heat generation within them, are both considered for two values, 1 x 10(5) and 1 x 10(7), of the leading non-dimensional parameter, the Grashof number. Air (Pr = 0.71) is considered as the working fluid. Transient and long term thermal and flow behaviours are investigated. Steady-state solutions are asymptotically found at the lower Gr-value. However, time-dependent long-term solutions are predicted at Gr = 1 x 10(7) .
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