Non-zero helicity of a cyclonic vortex over localized heat source

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

Sukhanovskii, A.^1 ; Evgrafova, A.^1 ; Popova, E.^1

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

614013, Russia^1

关键词: Cyclonic vortices;    Differential characteristic;    Experimental and numerical studies;    Observational data;    Physical interpretation;    Rotating fluids;    Tropical cyclone;    Typical structures;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/754/7/072005/pdf
DOI  :  10.1088/1742-6596/754/7/072005

来源: IOP

【 摘 要 】

Experimental and numerical study of the steady-state cyclonic vortex from isolated heat source in a rotating fluid layer is described. The structure of laboratory cyclonic vortex is similar to the typical structure of tropical cyclones from observational data and numerical modelling including secondary flows in the boundary layer. Differential characteristics of the flow were studied by numerical simulation using CFD software FlowVision. It was found that helicity in a described system has non-zero value. Physical interpretation of helicity distribution is provided.