| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a turbine blade cascade end wall capable of reducing a cross flow, capable of reducing a secondary flow loss associated with the cross flow, and capable of improving turbine performance. <P>SOLUTION: This turbine blade cascade end wall includes a first projection part 11 having an apex P1 provided in a 0-20% pitch position in a position of 5-25% Cax, between one turbine stator blade B1 or turbine moving blade, and the other turbine stator blade B1 or turbine moving blade adjacently arranged to the turbine stator blade B1 or the turbine stator blade, gently inclined toward a back face of the turbine stator blade B1 or turbine moving blade adjacently arranged on the downstream side from the apex P1, steeply inclined a little toward the upstream side from the apex P1, and gently protruding as a whole. A height of the apex P1 of the first projection part 11 is set to 5%-20% of the length in the axial direction of the turbine stator blade B1 or turbine moving blade adjacently arranged to the first projection part 11. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
