The numerical simulation of the water-filling in the water tank with two ingates

Abstract

Recently, with the development of computer technology and CFD (computational fluid dynamics) methods, the Navier-Stokes equations are directly solved for the simulation of many surface problems including fluid flow in channel, wave breaking and overtopping processes. In this paper, a computational method, which is based on a modified SMAC method, has been developed to analyze two dimensional incompressible viscous flows and to calculate the visualization of fluid flow during the transient filling of liquid water for the solidification period. The flow pattern, filling sequence, and the flow gradient distribution in the water tank are predicted. In this work, the changes of flow velocity and inflow are simulated by the diameter changes of two ingates for 4-Cas es, respectively. The simulation results are expressed in the form of visual information with plots of marker particle configurations and velocity vectors. Due to this information, the water-filling flow pattern in the water tank can be simulated very well. This numerical simulation will also be applied for the design of structures such as an open flume and a porous breakwater.