Numerical investigation of electro hydrodynamics (EHD) enhanced water evaporation using Large Eddy Simulation turbulent model

摘要

In this paper, the electric field effect on enhancement of the water evaporation rate in a channel is numerically investigated. The coupled equations of electrical field, flow field, temperature field and species concentration fields are discretized using Finite Volume Method (FVM) and the implicit/hybrid difference form. This equations are solved via SIMPLE algorithm and the Kaptsov hypothesis. The turbulent flow is modelled by Large Eddy Simulation (LES). The numerical results show that the water evaporation rate is increased with the presence of electric field, but the effect of electric field is diminished at high Reynolds number. (C) 2015 Elsevier B.V. All rights reserved.