A NUMERICAL STUDY ON THE HYDRODYNAMICS AND HEAT TRANSFER OF A CIRCULAR LIQUID JET IMPINGING ONTO A SUBSTRATE

The problem of convective heat transfer of a circular liquid jet impinging onto a substrate is studied numerically. The objective of the study is to understand the hydrodynamics and heat transfer of the impingement process. The Navier-Stokes equations are solved using a finite-volume formulation. The free surface of the jet is tracked by the volume-of-fluid method. The energy equation is modeled by using an enthalpy-based formulation. The effects of several key parameters on the hydrodynamics and heat transfer of an impinging liquid jet have been examined. The numerical results are in close agreement with experimental data obtained from the literature.

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