Based on the common cognition of the tip clearance flow

which has a significant influence on compressor performance and MIT (Massachusetts Institute of Technology) Khalid tip leakage model

a blockage model of tip leakage flow in the condition of low-speed and transonic was deduced in this paper.With analysis of the real flow case in tip clearance and diffusion passage

the aerodynamic design parameters

such as loading

cord length

etc

on the rotor tip and the influence of shock wave on tip leakage loss were analyzed in this model.The three-dimensional numerical simulation results show that this model can track the behaviors of jam resulted from compressor tip clearance flow.