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Numerical Investigation of Rotating Convection in a New Configuration with Bidirectional Thermal Gradients

Publication Type : Book Chapter

Publisher : Springer Singapore

Campus : Coimbatore

School : School of Artificial Intelligence

Year : 2021

Abstract : Novel laboratory experiments are configured to study convective dynamics and heat transport characteristics in a non-homogeneously heated rotating annulus. The bidirectional temperature gradients are obtained by imposing a constant cold temperature on inner wall and a constant high temperature along the periphery at the bottom using an aluminium strip of width, h = 5 mm. OpenFOAM simulations are carried out to study convective dynamics in the above-mentioned configuration in a 2D axisymmetric plane to mimic a r − z plane of the real experimental set-up. The parameter range for simulation is Ra =  and Ta = 0–1.06 × 108. Temperatures on outer and inner walls are kept as 302 K and 292 K, respectively. The working fluid is water with a Prandtl number, Pr = 7. Vertical temperature profiles show decreasing impact of thermal forcing with increasing elevation. OpenFOAM simulation combined with experimentally obtained thermal results indicates coexistence and interplay of thermal plumes and baroclinic waves.

Cite this Research Publication : Swarnakar, Numerical Investigation of Rotating Convection in a New Configuration with Bidirectional Thermal Gradients, [source], Springer Singapore, 2021

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