| 摘要 |
PROBLEM TO BE SOLVED: To provide an axial flow fluid machine blade with high cascade efficiency by suppressing the growth of a back side horseshoe vortex and a passage vortex low. SOLUTION: In an axial flow fluid machine blade, projecting blade parts 35a, 35b formed by axial base lines XA, XB extending upstream from at least one of a root part 34b and a tip part 34c of a blade effective part 34a and axial lines YA, YB extending aslant toward an front edge 34e of the blade effective part 34a are continuously, integrally formed in the front edge 34e, and the maximum blade thickness of the blade effective part 34a and the maximum blade thicknesses of the projecting blade parts 35a, 35b are formed in the same thickness. |
