A conformal mapping technique, appicable to compressor and turbine cascades, is presented. The technique can be used to map the field surrounding the cascade into a rectangle, in which the image of the blade surface lies along one side of the rectangle, the image of the trailing edge is at two corners of the rectangle, and the image of downstream infinity lies at the other two corners. These features make it possible to use the mapping in several contemporary flow field analysis codes, which carry out their calculations in such a rectangular plane. The mapping produces on O-type grid in the cascade plane.

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