Development Of An Integral Model For The
Dispersion
Of Hot And Moist Gases
Author(s)
M.A.C. Teixeira & P.M.A. Miranda
Abstract
Development of an integral model for the
dispersion of hot and moist gases
M.A.C. Teixeira, P.M.A. Miranda
Centra de Geofisica da Universidade de Lisboa, Rua da Escola
Politecnica, 58, 1250 Lisboa, Portugal
Abstract
Buoyant plumes can be simulated with reasonable accuracy and simplicity using
integral models. This paper attempts to analyze some aspects of buoyant plume
dispersion using one of the most sophisticated integral models available,
developed by Schatzmann. The model is studied in some detail and compared to
a slightly different version, proposed by Davidson. It is found that differences
put in the establishment of the two models lead to significant changes in the
plume behaviour. Some modifications to Schatzmann's model are suggested, in
which sheared wind, radiation, moisture and phase transitions are taken into
account. Finally, an alternative, simpler, turbulence closure is proposed for the
parametrization of entrainment, which is the strongest const
Keywords
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