Convection of Moist Saturated Air: Analytical Study

Atmosphere

Robert Zakinyan²  Arthur Zakinyan¹  Roman Ryzhkov²  Kristina Avanesyan² 

[1] Department of General and Theoretical Physics, Institute of Mathematics and Natural Sciences, North Caucasus Federal University, 1 Pushkin Street, Stavropol 355009, Russia

关键词: thermal convection;    Rayleigh–Benard convection;    moist air;    stream function;    analytical model;   

DOI  :  10.3390/atmos7010008

来源: mdpi

【 摘 要 】

In the present work, the steady-state stationary thermal convection of moist saturated air in a lower atmosphere has been studied theoretically. Thermal convection was considered without accounting for the Coriolis force, and with only the vertical temperature gradient. The analytical solution of geophysical fluid dynamics equations, which generalizes the formulation of the moist convection problem, is obtained in the two-dimensional case. The stream function is derived in the Boussinesq approximation with velocity divergence taken as zero. It has been shown that the stream function is asymmetrical in vertical direction contrary to the dry and moist unsaturated air convection. It has been demonstrated that the convection in moist atmosphere strongly depends on the vapor mass fraction gradient.

【 授权许可】

CC BY   
© 2016 by the authors; licensee MDPI, Basel, Switzerland.