Numerical Study of Oscillation Phenomena in Radiation Fogs
辐射雾中振荡现象的数值研究

A one-dimensional second-order closure PBL model coupled with soil model is applied to simulate the formation, development and dissipation of radiation fog. The results show that the interaction betWeen turbulent field and radiative field plays a very important role in the formation and development of radation fog. The simulation also shows a series of pronounced oscillation in some fog parameters such as the liquid water content. These oscillations may be related to the flactuation of turbulent eddy in fogs. The results are in qualitative agreement with the observation.