Numerical Simulation of Unsteady Oil Spill From a Damaged Tank Into Water

The unsteady problem of oil spill from a damaged tank into water is considered. The mathematical model of the joint motion of three immiscible phases (water, oil and air) includes the continuity equations, Navier-Stokes equation and the equation for determining of the interphase position. The problem is solved by the finite volume method. The oil leakage rate from the tank, the fluid velocity profile in the hole section, and the effect of the hole size on lowering the oil level are determined. Various options for filling the ballast tank are accessed from the point of view of minimizing the negative impact of oil spills on the nature. It is shown that in the event of an accident, the presence of a ballast tank filled with water significantly reduces the volume of oil leakage into water.