Turbine blade cascade end wall

摘要

PROBLEM TO BE SOLVED: To improve performance of the whole turbine, by reducing a loss, by reducing a cross flow and curling-up of a blade back face generated on a turbine end wall, without having influence on a difference in a blade shape, in a turbine blade set large in an outflow angle.;SOLUTION: This turbine blade cascade end wall 10 is positioned on the hub side and/or the tip side of a plurality of turbine blades B arranged in an annular shape, and is provided with a first projection part 13 having a ridgeline lowering gently at first and suddenly in the end, and extending along a back face of the adjacent turbine blades B, toward the downstream side from the trailing edge of the turbine blades B.;COPYRIGHT: (C)2007,JPO&INPIT