Numerical Simulation of Heat Transfer and Evaporation During Impingement of Drops onto a Heated Wall

Abstract In this study, hydrodynamics and heat transport during the impact of single multiple drops onto a hot wall are studied numerically. The transfer in vicinity three-phase contact line, where solid, liquid vapour meet, contributes significantly to global transfer. microscale processes region line analysed using lubrication approximation. results form correlations integrated into an overall model. impingement on macro scale is simulated numerical model developed within OpenFOAM library. influence dimensionless parameters, i.e., Reynolds, Weber, Bond, Prandtl Jakob numbers, as well pressure, phenomena discussed. analysis drop frequency substrate thickness vertical coalescence spacing horizontal surface complete study. contribute better understanding complex mechanisms spray cooling.