Fig. 10 presents the normalized relative tip clearance distribution of the blade type A and B under working condition. The predicted running tip clearance shows non-uniform tip profile over entire flow passage. The black dashed line indicates the cold build tip clearance and solid line shows the running tip clearance. The running tip clearance is generally reduced compared to the cold build tip clearance. In particular, the significant reduction of tip clearance occurs at the leading and trailing edge of the blade.