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Zonal flows are often found in rotating convective systems. Not only arethese jet-flows driven by the convection, they can also have a profound effecton the nature of the convection. In this work the cylindrical annulus geometryis exploited in order to perform nonlinear simulations seeking to producestrong zonal flows and multiple jets. The parameter regime is extended toPrandtl numbers that are not unity. Multiple jets are found to be spacedaccording to a Rhines scaling based on the zonal flow speed, not the convectivevelocity speed. Under certain conditions the nonlinear convection appears inquasi-periodic bursts. A mean field stability analysis is performed around abasic state containing both the zonal flow and the mean temperature gradientfound from the nonlinear simulations. The convective growth rates are found tofluctuate with both of these mean quantities suggesting that both are necessaryin order for the bursting phenomenon to occur.

On the necessary conditions for bursts of convection within the rapidly rotating cylindrical annulus