Free Convective Motion of Air in a Heated Space

被引：0
|
作者：
B. A. Unaspekov
K. O. Sabdenov
M. Erzada
S. Sh. Auelbekov
A. S. Taubaldieva
O. D. Seitkaziev
机构：
[1] K. I. Satpaev Kazakh National Research Technical University,
[2] L. N. Gumilev Eurasian National University,undefined
[3] International Education Corporation (Kazakh Head Architectural and Construction Academy),undefined
来源：
Journal of Engineering Physics and Thermophysics | 2020年 / 93卷
关键词：
buildings; temperature regime; free convection; hydrodynamics; turbulence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 fluctuations 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 flow of cold air moving over the lower part of the space will appear from the window.
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页码：164 / 171
页数：7
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