Enhancement of an impingement heat transfer between turbulent mist jet and flat surface

Second-moment closure simulation of flow and heat transfer in a gas-droplets turbulent impinging jet

“…The present paper continues latter numerical simulations of heat transfer in the gas-droplet jet impingement [21,22].…”

“…No coalescence occurs in the flow because the amount of the dispersed phase is small, and droplets never undergo the brake-up [21,22,34]. The preliminary calculations with application of one-way and two-way couplings showed that within the given range of initial volumetric concentrations and sizes of droplets the feedback onto the mean motion of the gas phase will be insignificant (less than 3%).…”

“…The authors used this model successfully for simulations of gasdroplet jet with droplets evaporation (see, for example, [21,22]). Gas phase turbulence is modeled by the SMC model of [33].…”

“…The values of turbulent Prandtl and Schmidt numbers in this study are taken equal: Pr T ¼ Sc T ¼ 0.85 as in [21]. The second-moment closure model for the two-phase flow consists of the system of equations for the second moments in the single-phase impinging flow and equation of TKE dissipation [33] with consideration of the effect of the dispersed phase on gas turbulence [24].…”

“…The gas-droplet impinging jet is investigated in [21,22]. The authors use the Eulerian approach [23e27] with application of the modified ke 3 model [28].…”