For rotor shrouded blade with cooling air

the total pressure loss coefficient of tip leakage flow in stationary state was investigated in different mainstream Reynolds numbers

outflow ratio of the former and the latter holes

tip clearance at so on.The results show:(1)total pressure loss coefficient increases as mainstream Reynolds number and outflow ratio of the former hole increase;(2)total pressure loss coefficient also increases by reducing tip clearance

which increases faster with the mainstream Reynolds number and outflow ratio especially in small tip clearance;(3)outflow ratio of the latter hole has litter impact on total pressure loss coefficient.