Investigating the contour dynamics of the vortex eye on the laboratory model of a differentially rotating fluid

Turbulence, Atmosphere and Climate Dynamics

生态环境科学

Solovyev, D.A.^1 ; Solovyev, A.A.^2

Sea-Air Interaction and Climate Laboratory, Shirshov Institute of Oceanology, Russian Academy of Sciences, Nahimovskiy prospect, 36, Moscow

117997, Russia^1

Department of Geography, M.V. Lomonosov Moscow State University, Lenin Hills, 1/19, Moscow

119991, Russia^2

关键词: Contour dynamics;    Energy process;    Inflection points;    Laboratory experiments;    Laboratory models;    Rotating fluids;    Velocity profiles;    Vortex centers;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/231/1/012050/pdf
DOI  :  10.1088/1755-1315/231/1/012050

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This article studies the contour dynamics of the vortex eye based on the results of laboratory experiments with a differentially rotating shallow fluid. This paper also describes the analysis of the energy processes inside the vortex center with variations in the velocity shift between the center of the system and the periphery in the framework of the instability representations due to the presence of inflection points on the velocity profile. Moreover, it is shown that the conditions for the development of instability arise only at fully determined values of the velocity shift to the width ratio of the shear zone. Finally, articles states that the formation of polygonal configurations of vortex contours with velocity shift is associated with energy transfer.