Abstract
Large-scale structures sometimes cause a considerable temperature drop around it in winter nights, which often results in a serious damage to crops.This micrometeorological problem is very serious in some regions;it is an important item of environmental assessment.
Stagnation of chilled night air is the essence of the problem.Analysis of this problem requires the study of the natural convective flow which is generated by the radiative cooling of the ground surface.Numerical method is profitably applicable to this problem.In this paper the fundamental process is described and the governing equations are presented;massconservation transport of momentum, diffusion of energy and heat balance.
Once the flow field is determined, conventional meteorological procedures enable the environmental assessment.Numerical examples are also presented.
