The development of jets in stratified fluids
Abstract
A numerical model is developed for the effects of a jet introduced into a channel containing a stratified fluid at rest. The channel is regarded as semiinfinite, allowing the free fluid to escape downstream. A Boussinesq approximation is used for the NavierStokes equations, with disturbances of temperature and pressure linked to the temperature of the fluid at rest. Finite difference equations are examined for the simulation and determined to be accurate for 56 times the wall heigh downstream. Oscillations are determined to appear on the velocity axis due to the presence of eddies. Waves which propagate outward in front of the tongue of the jet in a horizontal plane gradually witness a diminution of their amplitude to zero.
 Publication:

Journal de Mecanique Theorique et Appliquee
 Pub Date:
 1982
 Bibcode:
 1982JMecT...1..467P
 Keywords:

 Channel Flow;
 Computational Fluid Dynamics;
 Jet Flow;
 Laminar Flow;
 Stratified Flow;
 Two Dimensional Jets;
 Boussinesq Approximation;
 Finite Difference Theory;
 Fluid Pressure;
 Mathematical Models;
 NavierStokes Equation;
 Temperature Distribution;
 Wall Flow;
 Wave Propagation;
 Fluid Mechanics and Heat Transfer