Numerical Simulation And Separate Efficiency Study Of Oil-air Separator

The lubricating oil mist which produces under the high temperature in the submarine's main gear box and the circulating lubricating oil tank diffuses to the rooms of the submarine. The oil mist does not only waste the lubricating oil resources, but also pollutes the air of the rooms, and will be harm to the health of the staff in the submarine. More serious thing is that the oil mist will diffuse to other rooms through ventilating system, erode electronic installation, and influence battle effectiveness of the submarine. At present, centrifugal oil-air separator is applied to the submarine to eliminate the oil mist.Oil-air separator is a sort of equipment that makes the air and oil droplet revolve together and makes the oil droplet separate from the mixture in the function of centrifugal force. Its work-process is a most complex three-dimension movement of revolving turbulence and two-phase separation. So it is very difficult to predict the law of flow with parse means. The study on performance of separator simply by experiment has a long term and expensive consumption. Numerical simulation technology has many merits, for example, the devoted finance is less, the speed of design and computation is quick, the information is full and the ability of simulation is better. Therefore, studying on the law of the turbulent flow in oil-air separator with numerical simulation and then optimizing its configuration, may shorten the period of study and design of separator greatly. This has important application worth in engineering.This article does the research on the oil-air separator used in the submarine using FLUENT, the business software of CFD. The article does not only offer the logical model and method to simulate the oil-air separator, but also does the research on the flow of air,...