Numerical Analysis of Heat Transfer in Ferrofluid Under Constant External Magnetic Field

摘要

This paper reports the numerical analysis of single-phase kerosene-based ferrofluid that passes through a circular-shaped closed loop. Permanent magnet has been employed to generate the magnetic field, and fluid flows as per thermo-magnetic convection principle. A two-dimensional, incompressible, and laminar flow has been considered while performing the time-dependent heat transfer study for the ferrofluid. The governing equations such as continuity, momentum, and energy equations are solved for steady-state incompressible flow using a partial differential equation based multiphysics finite element software, COMSOL Multiphysics 5.0. Simulation results indicate that magnitude of Kelvin body force rises with time as fluid flows with increased velocity resulting in successful dissipation of heat flux.