Effect of slip position on the hydrodynamic performance of liquid film seal

The purpose of this paper is to investigate the effect of slip position on the performance of liquid film seal.,A mathematical model of liquid film seal with slip/no-slip surface was established based on the Navier slip model and JFO boundary condition. Liquid film governing equation was discretized by the finite difference method and solved by the SOR relaxation iterative algorithm and the effects of slip position on sealing performance are discussed.,The results indicate that boundary slip plays an important role in the overall performance of a seal and a reasonable arrangement of slip position can improve the steady-state performance of liquid film seal.,Based on the mathematical model, the optimal parameters for liquid film seal with boundary slip at groove are obtained. The results presented in this study are expected to provide a theoretical basis to improve the design method of liquid film seal.,The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2020-0082/