Patent ID: 7519517

Claim:
A computer-readable storage medium having computer-executable instructions for generating a blade shape, that when executed performs the method comprising: defining a camber line on a cross-section of the blade shaped to be generated based on a camber line defining equation having a first cubic function that defines a leading edge camber line on a leading edge side of a maximum camber point on the camber line, and a second cubic function that defines a trailing edge camber line on a trailing edge side of the maximum camber point on the camber line, wherein the first cubic function and the second cubic function take into consideration a chord length, a position of the maximum camber point, a maximum camber value, an inflow angle, and a discharge angle of the camber line as design factors, and the camber line defining equation includes a boundary condition where the first function and the second function have tangents continuous with each other at the maximum camber point; and displaying a checklist window on a display device as to the acceptability of the generated camber line.