A Dense Current Flowing down a Sloping Bottom in a Rotating Fluid

Dynamics of a dense gravity current flowing over a corrugation

In this study, we investigate the dynamics of a dense gravity currents over different sizes of ridges and canyons. We employ a high resolution idealized isopycnal model and perform a large number of experiments changing the aspect ratio of a ridge/canyon, the Coriolis parameter, the reduced gravity, the background slope and initial overflow thickness. The control run (smooth topography) is in a...

Gravity current down a steeply inclined slope in a rotating fluid

The sinking of dense water down a steep continental slope is studied using laboratory experiments, theoretical analysis and numerical simulation. The experiments were made in a rotating tank containing a solid cone mounted on the tank floor and originally filled with water of constant density. A bottom gravity current was produced by injecting more dense coloured water at the top of the cone. T...

Baroclinic Vortices over a Sloping Bottom

Nonlinear quasigeostrophic flows in two layers over a topographic slope are considered. Scaling the lower layer potential vorticity equation yields two parameters which indicate the degree of nonlinearity in the lower layer. The first, u' (the strength of the deep flow divided by the product of the effective bottom slope and the squared length scale), is related to the advection of relative vor...

A Calculation of The.viscous Force Exerted by a Flowing Fluid on a Dense Swarm of Particles

A calculation is given of the viscous force, exerted by a flowing fluid o11 a dense swarm of particles. The model underlying these calculations is tha t of a spherical particle embedded in a porous mass. The flow through this porous mass is decribed by a modification of D a r c y 's equation. Such a modification was necessa'ry in order to obtain consistent boundary conditions. A relation betwee...

The unknown object problem in a sea with sloping bottom