Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Symmetric interaction of developing horizontal jet in a stratified fluid with a vertical cylinder
 

Summary: Symmetric interaction of developing horizontal jet in a stratified fluid
with a vertical cylinder
S. I. Voropayev and Ya. D. Afanasyev
Institute of Oceanolog3?,Russian Academy of Sciences, Moscow 117218.Russia
(Received 26 January 1993; accepted 11 January 1994)
A self-similar planar vortex dipole, arising at the front of developing horizontal jet in a stratified
fluid, collides with a small vertical cylinder. The primary vortical flow interacts with the secondary I
vorticity generated at the boundary of the cylinder and finally a new dipole of reduced intensity
forms. The estimates for the reduction of the flow momentum and alteration of the overall ....
propagation velocity and length scales of the newly formed dipole are given. The evolution of the
real flow is also explained mathematically.
I. INTRODUCTION
The problem of interaction of compact vortex structures
with solid bodies is of central importance for various techni-
cal and geophysical applications. Stern and whitehead' have
considered the separation of a near-wall jet in a rotating fluid
in the laboratory experiment.and numerically using a contour
dynamics method. The separation of the impulsive vortex
dipole, which moves along a vertical wall in a stratified fluid,
was observed by Voropayev and ~fanas~ev.'In the latter

  

Source: Afanassiev, Iakov - Department of Physics and Physical Oceanography, Memorial University of Newfoundland

 

Collections: Geosciences