Modelling the separation and eddy formation of coastal currents in a stratified tank

Seth H Lichter; J. B. Flór; G. J F van Heijst

doi:10.1007/BF00208069

Modelling the separation and eddy formation of coastal currents in a stratified tank

Seth H Lichter^*, J. B. Flór, G. J F van Heijst

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Experiments were performed to investigate the separation and vortex development of a wall-jet in a stratified tank. A horizontal jet was introduced adjacent to and parallel to a wall. On a fast time scale O (1/Brunt-Väisälä frequency) a planar flow was generated by gravitational collapse of the initially three-dimensional jet. Fluorescein was used for visualization. Vorticity and stream function were determined by optically tracking tracer particles. The current separated from the wall, then organized into an asymmetrical dipole which propagated away from the wall. The stronger region of vorticity stretched the weaker region about itself. As a result, the long-time structure was a monopole.

Original language	English (US)
Pages (from-to)	11-16
Number of pages	6
Journal	Experiments in Fluids
Volume	13
Issue number	1
DOIs	https://doi.org/10.1007/BF00208069
State	Published - May 1 1992

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Computational Mechanics
Fluid Flow and Transfer Processes

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AU - Lichter, Seth H

AU - Flór, J. B.

AU - van Heijst, G. J F

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AB - Experiments were performed to investigate the separation and vortex development of a wall-jet in a stratified tank. A horizontal jet was introduced adjacent to and parallel to a wall. On a fast time scale O (1/Brunt-Väisälä frequency) a planar flow was generated by gravitational collapse of the initially three-dimensional jet. Fluorescein was used for visualization. Vorticity and stream function were determined by optically tracking tracer particles. The current separated from the wall, then organized into an asymmetrical dipole which propagated away from the wall. The stronger region of vorticity stretched the weaker region about itself. As a result, the long-time structure was a monopole.

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Modelling the separation and eddy formation of coastal currents in a stratified tank

Abstract

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