Abstract
A numerical simulation is applied to a two dimensional unsteady natural convection environment with smoking interaction. The coupled continuity, momentum, energy and mass transfer equations are solved in the present study by an iterative procedure.Both of the effects of mass and heat generation at smoking site are considered. As the result, the time dependent behavior of the smoke as well as other information about flow and temperature fields are obtained. It is found that the smoking generated micro particles and gaseous contaminants are transfered both by the indoor natural convection and the rising flow due to buoyance force above the smoking site, rather than the diffusion due to the local mass concentration gradiant. 77te heat generation effects upon mass concentration, temperature and velocity distribution are found to be quite significant.
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