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Laboratory experiments were conducted to study heat transport characteristicsin a nonhomogeneously heated fluid annulus subjected to rotation along thevertical axis (z). The nonhomogeneous heating was obtained by imposing radialand vertical temperature gradient ({\Delta}T). The parameter range for thisstudy was Rayleigh number, Ra=2.43x10^8-3.66x10^8, and Taylor number,Ta=6.45x10^8-27x10^8. The working fluid was water with a Prandtl number, Pr=7.Heat transport was measured for varying rotation rates ({\Omega}) for fixedvalues of {\Delta}T. The Nusselt number, Nu, plotted as a function of Tadistinctly showed the effect of rotation on heat transport. In general, Nu wasfound to have a larger value for non-rotating convection. This could mean aninterplay of columnar plumes and baroclinic wave in our system as also evidentfrom temperature measurements. Laser based imaging at a single vertical planealso showed evidence of such flow structure.

Convection in rotating flows with simultaneous imposition of radial and vertical temperature gradients