# The evolution of localized vortex in stably stratified flows

@inproceedings{Levinski2021TheEO, title={The evolution of localized vortex in stably stratified flows}, author={Vladimir Levinski}, year={2021} }

The evolution of a localized vortex in stably stratified flow, within the Boussinesq approximation, is analyzed using the fluid impulse concept. The set of equations describing the temporal development of the fluid impulse has an integro-differential character where the terms representing the effect of stratification appear as convolution integral of the component of the fluid impulse and time-depended ’memory’ functions. These functions are calculated for the case where the external parallel…

## References

SHOWING 1-10 OF 29 REFERENCES

### The evolution of a localized vortex disturbance in external shear flows. Part 1. Theoretical considerations and preliminary experimental results

- Physics, EngineeringJournal of Fluid Mechanics
- 1995

The evolution of a finite-amplitude three-dimensional localized disturbance embedded in external shear flows is addressed. Using the fluid impulse integral as a characteristic of such a disturbance,…

### The evolution of a localized vortex disturbance in external shear flows. Part 2. Comparison with experiments in rotating shear flows

- Physics, EngineeringJournal of Fluid Mechanics
- 1999

The evolution of artificially generated localized disturbances in the shape of hairpin vortices, in laminar axisymmetric rotating shear flows, is investigated experimentally. The results are compared…

### Coherent Structures in Stratified Turbulent Shear Flows Deduced from Direct Simulations

- Physics, Environmental Science
- 1991

The character of coherent turbulence structures at the presence of mean shear and stable stratification is investigated using databases of three-dimensional velocity and temperature perturbation…

### On the motion of laminar wing wakes in a stratified fluid

- PhysicsJournal of Fluid Mechanics
- 1996

We present numerical solutions for two-dimensional laminar symmetric vortex systems descending in a stably stratified fluid, within the Boussinesq approximation. Three types of flows are considered:…

### The Motion of a Vortex Pair in a Stratified Atmosphere

- Physics, Environmental Science
- 1972

The movement of a horizontal vortex pair through an inhomogeneous fluid is considered. The problem is formulated first for the case when the ambient fluid is uniform, the fluid moving with the vortex…

### The structure of the vorticity field in homogeneous turbulent flows

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 1987

The structure of the vorticity fields in homogeneous turbulent shear flow and various irrotational straining flows is examined using results from direct numerical simulations of the unsteady,…

### Experiments on the transition of homogeneous turbulence to internal waves in a stratified fluid

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 1983

The evolution of unsheared grid-generated turbulence in a stably stratified fluid was investigated in a closed-loop salt-stratified water channel. Simultaneous single-point measurements of the…

### Growth and decay of turbulence in a stably stratified shear flow

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 1988

The behaviour of an evolving, stably stratified turbulent shear flow was investigated in a ten-layer, closed-loop, salt-stratified water channel. Simultaneous single-point measurements of the mean…

### Vorticity dynamics in a breaking internal gravity wave. Part 1. Initial instability evolution

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 1998

A three-dimensional simulation of a breaking internal gravity wave in a stratified, compressible, sheared fluid is used to examine the vorticity dynamics accompanying the transition from laminar to…

### A numerical study of the evolution and structure of homogeneous stably stratified sheared turbulence

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 1992

The structure and evolution of homogeneous stably stratified sheared turbulence have been investigated through direct numerical simulation. In these simulations the primary dimensionless parameter is…