Convection in a rotating annulus with a negative radial temperature gradient
- 1 January 1978
- journal article
- research article
- Published by Taylor & Francis in Geophysical & Astrophysical Fluid Dynamics
- Vol. 10 (1), 157-173
- https://doi.org/10.1080/03091927808242635
Abstract
The transition from the flow in the wave regime of the rotating annulus to the flow in the upper symmetric regime has been investigated experimentally in two apparatus with positive as well as negative radial temperature gradients. It has been found that the absolute value of the radial temperature difference at which the transition occurs depends on the sign of the temperature gradient. The velocities of the wave patterns relative to the rotating annulus have also been measured, with positive and negative temperature gradients and four different rotation rates, with the fluid being in contact with a rigid lid. Repeated changes in the direction in which the patterns move have been observed, at different values of the negative radial temperature gradient. Abrupt increases of the pattern velocities occurred with the transition from 2 waves to 1 wave, when the temperature gradient was either positive or negative.Keywords
This publication has 9 references indexed in Scilit:
- Baroclinic waves in a container with sloping end wallsPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975
- An experimental study of the effects of the upper boundary condition on the thermal convection in a rotating, differentially heated cylindrical annulus of waterGeophysical Fluid Dynamics, 1973
- An investigation of the structure of baroclinic waves using three‐level streak photographyQuarterly Journal of the Royal Meteorological Society, 1972
- Convection in a rotating laterally-heated annulusJournal of Fluid Mechanics, 1972
- Rotating deep annulus convection. Part 2. Wave instabilities, vertical stratification, and associated theoriesTellus, 1970
- Thermal Convection in a Rotating Fluid Annulus. Part I. The Basic Axisymmetric FlowJournal of the Atmospheric Sciences, 1967
- Thermal Convection in a Rotating Annulus of Liquid: Effect of Viscosity on the Transition Between Axisymmetric and Non-Axisymmetric Flow RegimesJournal of the Atmospheric Sciences, 1965
- Developments in Controlled Experiments on Larger Scale Geophysical ProblemsPublished by Elsevier ,1961
- An experimental study of thermal convection in a rotating liquidPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1958