Flow and Torque Characteristic Numerical Studies in Axial Forced Taylor-Couette Flow with Heat Transfer

Taylor-Couette flow is a fluid flow between two concentric cylinders with the rotating cylinders enhanced with heat transfer. This study aims to analyze the influence of geometry parameters and dynamics on flow characteristics and torque boosted with heat transfer. Geometry parameters in the study with radius ratio 0.714 and aspect ratio 10 with variations of circular Reynolds numbers circular 81 to 5200 and inner cylinder temperatures at 60 0C and outside cylinder temperatures at 100C. Discretization is with the second-order scheme of upwind and the SIMPLEC algorithm scheme. The flow was modeled with the turbulence model k-ω turbulence model. The results showed that Taylor-Couette flow would form a flow pattern of Couette laminar, wavy vortex, and vortex turbulent. The wavelength of the wavelength rises with increasing rotation. The profile of temperature distribution is in the form of a linear profile increases with the Reynolds number. The higher the profile of the temperature distribution will look more tilted, the convection heat transfer coefficient of the inner cylinder is higher because the condition of the inner cylinder wall rotates. Whereas for outer cylinders in the idle condition, the Nusselt average number on the inner cylinder is higher than the outer cylinder. This shows that the inner cylinder walls have stronger heat transfer strength. The torque increased more than the effect of cylinder rotation in the flow area with Taylor vortex sharper than laminar flow.