Two-dimensional vortex-dipole interactions in a stratified fluid
Publication type: Journal Article
Publication date: 1992-03-01
scimago Q1
wos Q1
SJR: 1.471
CiteScore: 6.8
Impact factor: 3.9
ISSN: 00221120, 14697645
Condensed Matter Physics
Mechanical Engineering
Mechanics of Materials
Abstract
Planar motion produced when a viscous fluid is forced from an initial state of rest is studied. We consider a vortex dipole produced by the action of a point force (Cantwell 1986), and a vortex quadrupole produced by the action of two equal forces of opposite direction. We also present results from an experimental investigation into the dynamics of the interactions between vortex dipoles as well as between vortex dipoles and a vertical wall in a stratified fluid. Theoretical consideration reveals that the dynamics of two-dimensional vortex-dipole interactions are determined by two main governing parameters: the dipolar intensity of the vorticity distribution (momentum) and the quadrupolar intensity of the vorticity distribution of the flow. We document details of different basic types of interactions and present a physical interpretation of the results obtained in terms of vortex multipoles: dipoles, quadrupoles and their combinations.
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Voropayev S. I., Afanasyev Ya. D. Two-dimensional vortex-dipole interactions in a stratified fluid // Journal of Fluid Mechanics. 1992. Vol. 236. pp. 665-689.
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Voropayev S. I., Afanasyev Ya. D. Two-dimensional vortex-dipole interactions in a stratified fluid // Journal of Fluid Mechanics. 1992. Vol. 236. pp. 665-689.
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TY - JOUR
DO - 10.1017/s0022112092001575
UR - https://doi.org/10.1017/s0022112092001575
TI - Two-dimensional vortex-dipole interactions in a stratified fluid
T2 - Journal of Fluid Mechanics
AU - Voropayev, S. I.
AU - Afanasyev, Ya D
PY - 1992
DA - 1992/03/01
PB - Cambridge University Press
SP - 665-689
VL - 236
SN - 0022-1120
SN - 1469-7645
ER -
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@article{1992_Voropayev,
author = {S. I. Voropayev and Ya D Afanasyev},
title = {Two-dimensional vortex-dipole interactions in a stratified fluid},
journal = {Journal of Fluid Mechanics},
year = {1992},
volume = {236},
publisher = {Cambridge University Press},
month = {mar},
url = {https://doi.org/10.1017/s0022112092001575},
pages = {665--689},
doi = {10.1017/s0022112092001575}
}