Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach

The theory of point vortices is used to explain the interaction of a surface vortex with subsurface vortices in the framework of a three-layer quasigeostrophic model. Theory and numerical experiments are used to calculate the interaction between one surface and one subsurface vortex. Then, the confi...

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Main Authors: Mikhail A. Sokolovskiy, Xavier J. Carton, Boris N. Filyushkin
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/8/1228
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author Mikhail A. Sokolovskiy
Xavier J. Carton
Boris N. Filyushkin
author_facet Mikhail A. Sokolovskiy
Xavier J. Carton
Boris N. Filyushkin
author_sort Mikhail A. Sokolovskiy
collection DOAJ
description The theory of point vortices is used to explain the interaction of a surface vortex with subsurface vortices in the framework of a three-layer quasigeostrophic model. Theory and numerical experiments are used to calculate the interaction between one surface and one subsurface vortex. Then, the configuration with one surface vortex and two subsurface vortices of equal and opposite vorticities (a subsurface vortex dipole) is considered. Numerical experiments show that the self-propelling dipole can either be captured by the surface vortex, move in its vicinity, or finally be completely ejected on an unbounded trajectory. Asymmetric dipoles make loop-like motions and remain in the vicinity of the surface vortex. This model can help interpret the motions of Lagrangian floats at various depths in the ocean.
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spelling doaj.art-4728e267d5d84264ad1b13a4b7fb63c12023-11-20T07:58:58ZengMDPI AGMathematics2227-73902020-07-0188122810.3390/math8081228Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex ApproachMikhail A. Sokolovskiy0Xavier J. Carton1Boris N. Filyushkin2Water Problems Institute, Russian Academy of Science, 3 Gubkina Street, 119333 Moscow, RussiaLaboratoire d’Océanographie Physique et Spatiale, IUEM/UBO, Rue Dumont D’Urville, 29280 Plouzané, FranceShirshov Institute of Oceanology, Russian Academy of Science, 36 Nahimovskiy Prospekt, 117997 Moscow, RussiaThe theory of point vortices is used to explain the interaction of a surface vortex with subsurface vortices in the framework of a three-layer quasigeostrophic model. Theory and numerical experiments are used to calculate the interaction between one surface and one subsurface vortex. Then, the configuration with one surface vortex and two subsurface vortices of equal and opposite vorticities (a subsurface vortex dipole) is considered. Numerical experiments show that the self-propelling dipole can either be captured by the surface vortex, move in its vicinity, or finally be completely ejected on an unbounded trajectory. Asymmetric dipoles make loop-like motions and remain in the vicinity of the surface vortex. This model can help interpret the motions of Lagrangian floats at various depths in the ocean.https://www.mdpi.com/2227-7390/8/8/1228quasigeostrophic modelvortex interactionintrathermocline lenspoint vortex
spellingShingle Mikhail A. Sokolovskiy
Xavier J. Carton
Boris N. Filyushkin
Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
Mathematics
quasigeostrophic model
vortex interaction
intrathermocline lens
point vortex
title Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
title_full Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
title_fullStr Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
title_full_unstemmed Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
title_short Mathematical Modeling of Vortex Interaction Using a Three-Layer Quasigeostrophic Model. Part 1: Point-Vortex Approach
title_sort mathematical modeling of vortex interaction using a three layer quasigeostrophic model part 1 point vortex approach
topic quasigeostrophic model
vortex interaction
intrathermocline lens
point vortex
url https://www.mdpi.com/2227-7390/8/8/1228
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