Three-Dimensional Simulation Analysis of the Flow Field of Gas Film at the End Face of Dry Gas Seals

Some finite element analyses were performed of the flow field of the gas film layer between the dynamic ring and the static ring at the end face of dry gas seals and the flow field in the spiral groove using ANSYS software.The unit partition was made at the surface along the vertical thickness,a method of stretching the surface reseau into body reseau was used to simulate and calculate the three dimensional flow field of the gas film layer,the distributions of the pressure and velocity of the flow fields of the whole gas film layer and the groove zone,platform zone,and dam zone of the seal surface were obtained.