Turbulent convective flows in a cubic cavity at high Prandtl number

All-Russian Conference with the School for Young Scientists “Thermophysics and Physical Hydrodynamics –2016”

Vasiliev, A.^1 ; Sukhanovskii, A.^1 ; Frick, P.^1

Institute of Continuous Media Mechanics - Academ, Korolyov 1, Perm

614013, Russia^1

关键词: Convective flow;    Cubic cavities;    Cubic cells;    Flow changes;    Propylene glycols;    Water solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/2/022010/pdf
DOI  :  10.1088/1742-6596/754/2/022010

来源: IOP

【 摘 要 】

Characteristics of turbulent convective flows in a cubic cell is studied experimentally for high values of Prandtl number. The first set was carriied out with propylene glycol (Pr = 64 and the second one with 25% water solution of propylene glycol (Pr = 24). It was found that increasing of Pr from 6.1 to 24 leads only to the slight change of intensity of the flow but during the next increasing of Pr from 24 to 64 the flow changes its structure.