Heat transfer characteristics of jet impingement onto heated disc bounded by a cylindrical wall

Abstract

Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.A numerical investigation to determine the thermal characteristics of an unsubmerged axisymmetric oil jet impinging in a confined space on both stationary and high speed reciprocated moving discs with uniform heat flux has been undertaken. The volume of fluid (VOF) method utilizing a high resolution interface capturing (HRIC) scheme was used to perform the two-phase (air-liquid) simulations. The governing 3D Navier-Stokes equations and energy equation were solved using a finite volume discretization. The conjugate heat transfer (CHT) method was used to obtain a coupled heat transfer solution between the solid and fluid, yielding a more accurate prediction for the heat transfer coefficient. A piston motion equation is used to provide a reciprocating motion for the disc inside a confined cylindrical space.