Experimental Setup for Studying Thermosolutal Convection in Moist Air

21st Winter School on Continuous Media Mechanics

计算机技术

Somov, S.A.^1^2 ; Ivanov, A.S.^1^2

Inst. of Continuous Media Mechanics Ural Br. of Russ. Acad. of Sci. the Affiliate of Perm Fed. Sci. Res. Ctr., 1 Korolev str., Perm

614000, Russia^1

Fed. State Budgetary Educ. Institution of Higher Education Perm State National Research University, 15 Bukirev str., Perm

614990, Russia^2

关键词: Atmospheric conditions;    Convective heat and mass transfers;    Convective instabilities;    Experimental scheme;    Gas dynamic parameters;    Laboratory conditions;    Solutal convections;    Thermosolutal convection;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/581/1/012016/pdf
DOI  :  10.1088/1757-899X/581/1/012016

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The paper is concerned with designing an experimental scheme for studying convection of moist air under conditions closely approximating the atmospheric conditions. Detailed numerical estimates, necessary conditions and dimensionless gas-dynamic parameters characteristic of the problem of dry and moist air convection are presented and analyzed. The distinctive features of convection of dry and wet air at constant pressure caused by changes in the concentration of water vapor as a result of its evaporation (condensation) are discussed. The effect of water vapor concentration on the convective instability of moist air is analyzed in the context of solutal convection, characterized by the Rayleigh concentration number. The obtained numerical estimates are used to demonstrate the possibility of differentiating and comparing between the processes of convective heat and mass transfer in humid and dry air under laboratory conditions. In future, this will allow researchers to obtain experimental data on the influence of the water-vapor phase transition on the intensity of convective motion in moist air. The structure and detailed technical characteristics of the constructed experimental setup designed for studying convection in moist air in the temperature range from 10 to 30 C are described.