Effect of Magnus Force on Flow over Cylinder and Heat Transfer Investigation: A Computational Fluid Dynamics Approach

Abstract

This computational study deals with the forced convection through horizontal cylinder which is performed in the CFD Lab, Department, Mechanical Engineering, GLA University, Mathura. The convective heat transfer coefficient is measured for two different cases stationary cylinder and rotating cylinder. The computational analysis was performed by using commercial CFD package ANSYS-Fluent. This analysis is done because we can’t get the pressure and velocity values in the full domain by using the governing equations. The contours of pressure, velocity and temperature are determined to capture the behaviour of flow throughout the region. Computationally determined values of local heat transfer coefficient are compared with the theoretical values obtained by using governing equations. The effect of the Magnus force is measured on the computational value in such way whether there is any increment in heat transfer coefficient or not. The nondimensional numbers as Nusselt number (Nu), Reynolds number (Re) and Prandtl number (Pr) are used to find the results of heat transfer. It is found that heat transfer is more efficient in case of rotating cylinder in comparison with stationary cylinder. The computationally determined results are found in well agreement with the analytical result.