Numerical simulation of hydraulic characteristics of surface jet on horizontal base plate with shallow depth

Abstract

The VOF (volume of fluid) method was applied to track free water surface, and the Realizable turbulent model was used to close the two-phase flow time-averaged equation to numerically simulate the hydraulic characteristics of surface jet on horizontal base plate with shallow depth. The result showed that a big vortex exists in the flow field, and the greater the inlet flow velocity, the longer the length of vortex. The distribution laws of horizontal velocity and longitudinal velocity of a cross section are different in the backflow region and open channel flow region. The gradient decaying of the maximum velocity on cross-section was mainly affected by the inlet velocity.