Numerical Investigation Of Vortex Oil Filter

Solid granule contamination resulting in failure of engine hydraulic machinery accounted forover50%of the total failure rate. So the controlling of solid particle contaminants content issignificant to the hydraulic system.At present almost all oil filter are used the filter cartridges. Allthis kind filters eventually become saturated with contaminants and need to be replaced orserviced before reduced fluid flow compromises hydraulic performance. This paper study the filteris to filter micron structured particle of Jet fuel No.3.At the rated operating temperature range themaximum viscosity is about10times of minimum viscosity. Limited in a small work place thevortex oil filter’s diameter is small than50mm. Our country has not yet to develop this type of oilfilter and did not see the related research reports，lacking of technical accumulation of the workingmechanism, design methods and validation tools, etc... This paper used the numerical simulationmeans to study vortex oil filter. The main research work is divided into the following four aspects:(1) Based on the theoretical analysis and numerical simulation，Compared the differencesbetween the two kinds turbulence models which is often used to analyze this structure’s flow fieldcharacteristic. By analyzing the characteristics of its velocity and pressure distribution. This paperproposed when research the flow field structure selected RSM model is more reasonable andcredible; and when investigated the structure parameters influencing on the oil filter choosing theRealizablek model is more efficient.(2) Used more than20different structures of the vortex oil filter，this paper studies the effectsof some key operating parameters and structural parameters to this filter,. Such as import width,overflow pipe diameter size, thickness and depth of insertion, and the cone angle. The results fromnumerical analysis for the structure of the vortex type oil filter size optimization provide basicprinciples.(3) Focused on the impact of oil viscosity and particle irregularity on the vortex filters’separation efficiency.(4) Finally through the analysis of calculation results sorting out the design principles of thevortex type oil filter, for subsequent researchers and experimental design providing a appropriatereference.