The effect of rotating fluid with Taylor column on forced convective heat transfer

Abstract

Taylor column phenomenon is a highly interesting flow-feature which is the result of Coriolis and inertia forces and can play a crucial role in modulating heat transfer characteristics. However, there is not much progress to capture Taylor column phenomenon numerically, let alone to study its heat transfer characteristics. In this regard, we have investigated the translation of a uniformly heated sphere through a rotating incompressible viscous fluid. The associated energy equation in axially symmetric spherical polar co-ordinates is solved using the Higher-Order Compact Scheme (HOCS) of the order four for steady high Reynolds number (Re) flow. It is noticed that the presence of Taylor column delays the rate of heat transfer past the sphere in the upstream zone while enhancing it in the downstream zone. The presence of the Taylor column at higher values of inverse Rossby number (1/Ro) modifies heat transfer in a typical manner over the cross-section of the sphere. A comparative study made between low Re heat transfer and steady high Re heat transfer unveils a broad perspective into the flow-physics of the problem. � 2022 Elsevier Ltd