FREE CONVECTIVE MOTION OF AIR IN A HEATED SPACE

The evolution properties of free convective motion of air in a heated space have been investigated by numerical modeling. The air motion is always nonstationary and turbulent. The existing technical constraint on the grid scale makes it possible to observe only large-scale eddies. In actual practice, eddies have different dimensions and are always in motion near the midposition; they can disappear and appear again. The larger the eddy size, the smaller the amplitude of fl uctuations of the air temperature and velocity in them. The most intense motion is near the window and the heating appliance. At low outdoor temperatures, it is highly likely that a fl ow of cold air moving over the lower part of the space will appear from the window
   
Author:  B. A. Unaspekov, K. O. Sabdenov, M. Erzada, S. Sh. Auelbekov,c A. S. Taubaldieva, and O. D. Seitkaziev
Keywords:  buildings, temperature regime, free convection, hydrodynamics, turbulence
Page:  164