10[15]Li J.YanX,Li G J,Feng Z P.Effects of Pressure Ratio and Sealing Clearance on Leakage Flow Characteristics in the Rotating Honeycomb Labyrinth Seal[C],Proceedings of ASME Turbo Expo 2007.Power for LaIld,Sea,and Air,2007,Montreal,CANADA,GT2007-27740.