Research Of The Fine Calculation Of The Ship's Oil Spill Process And Oil Spill Volume

Pollutions caused by ships, have become one of marine pollution sources which harms marine environment, destroys sea ecosystem and threatens the entire human race, but the influence of the ship's oil spill accident in the ship's pollution is especially to be serious. The oil spill accidents on the sea not only destroy natural environment and ecology resources, but also lead the economy to suffer a loss, moreover it severely endanger human body health. Once occur oil spill accident, we must take the positive motion measure, start emergency predetermined plan, lead oil spill to reduce slightly to the marine environment influence. The determination of oil spill volume, the forecast of oil spill path is the premise of the emergency motion, therefore it has the extremely vital significance to its high accuracy computation. The former oil spill computational method only to be able to estimate final oil spill volume, but cannot calculate the oil spill volume in each time from the ships breakage place, this does not favor applies in the simulation of oil spill in sea level path. Because of the insufficient of the above method, a kind new oil spill volume method is proposed in this paper, this method not only may describe the entire process of oil spill from ships after ships breakage, but also may have the precise computation of oil spill speed and oil spill volume in the ships breakage place each time, simultaneously also may have the synchronized simulation oil spill's migration and diffused path in sea water. This method causes the stimulant and the forecast result to be more precise, provides a more reliable basis for the emergency decision-making.This article uses the VOF model, Segregated, as well as the pressure speed coupling PISO algorithm in the FLUENT software to simulate the noncondensible and unsteady with time flow under the two-dimensional condition, this flow have the free surface, not mutually soluble and the oil - water - air three-phase. In the value computation involves the academic model which is the fluid equation of continuity, the momentum equation (the Navier-Stokes equation) as well as laminar pattern or rapids...