Investigation of Annular Gas Seal Performance With Combined Cavity Patterns Using Computational Fluid Dynamics

Abstract Annular gas seals are crucial components in turbomachinery applications since they reduce leakage flow from high-pressure to low-pressure sections. However, the fluid-induced rotor instabilities that may be governed by these components result in reduced efficiency and even failure in rotating machines. Thus, the proper selection and design of annular seals are critical to ensuring the sta…