Analysis on Characteristics of Annular Flow in the Transportation Pipeline of Oil-Gas Lubrication

According to the lubrication condition of sliding bearing,this article puts forward transformation mechanism of annular flow in oil-gas pipeline,the small disturbances method is applied to analysis of stability of the annular flow gas-liquid interface,and according to the circumferential distribution rule of the average thickness of liquid film,the uniformity of annular flow is analysed.It provides the theory basis for the accurate transportation of the annular flow in the pipeline,providing prerequisite for performance research of sliding bearing under oil-gas lubrication condition.