Abstract
The motion of a continuously stratified fluid in a rotating annulus is investigated experimentally. The flow is driven by the differential rotation of a lid on the annulus in contact with the fluid. For small enough Rossby numbers the basic flow is found to be axisymmetric, but in contrast to the unstratified case the zonal flow is not independent of the depth, and there is significant vertical shear in the interior. As the Rossby number of the flow is increased the axisymmetric flow becomes unstable to non-axisymmetric baroclinic disturbances. Some features of these disturbances as well as the time response to the motion of the lid are examined.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference12 articles.
1. Pedlosky, J. 1970 Flow in rotating stratified systems. Notes on 1970 Summer Prog. Geophys. Fluid Dyn., Woods Hole Ocean. Inst., no. 70–50, vol. 1, pp. 1–67.
2. Oster, G. 1965 Density gradients.Sci. Am. 213,70–76.
3. Barcilon, V. & Pedlosky, J. 1967 Linear theory of rotating stratified fluid motions.J. Fluid Mech. 29,1–16.
4. Allen, J. S. 1973 Upwelling of a stratified fluid in a rotating annulus: steady state. Part 2. Numerical solutions.J. Fluid Mech. 59,337–368.
5. Taylor, G. I. 1917 Motion of solids in fluids when the flow is irrotational.Proc. Roy. Soc. A93,99–113.
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