Influence of squeezing behavior on cavitation characteristics and performance parameters of mechanical seals with an efficient mass-conserving algorithm

摘要: The purpose of this paper is to investigate the influence squeezing and traction effects on sealing performance spiral groove mechanical seals. Firstly, a modified algorithm proposed solve Reynolds equation with squeeze term mass-conserving boundary conditions, which could effectively improve calculation efficiency high accuracy. Then, effect put forward analyze cavitation characteristic at different conditions pressure distribution various velocities. Finally, seal performance, i.e., fluid bearing capacity, clearance flow region, under operating structural parameters, discussed. Results indicate that has relatively apparent impact than rate variation. Squeeze becomes less visible when rotational speed exceeds 3000 r/min film thickness or depth 20 μm. This result would contribute revealing feature transient dynamic response during unsteady conditions.