Endwall contouring

摘要

An airfoil array is disclosed. The airfoil array may include an endwall, and a plurality of airfoils radially projecting from the endwall. Each airfoil may have a first side and an opposite second side extending axially in chord between a leading edge and a trailing edge. The airfoil array may further include a convex profiled region extending from the endwall adjacent the first side of at least one of said plurality of airfoils and near the leading edge of the at least one of said plurality of airfoils. The airfoil array may further include a concave profiled region in the endwall adjacent the first side of said at least one of said plurality of airfoils and aft of the convex profiled region.

主权项

1. An airfoil array, comprising:
an endwall; a plurality of airfoils radially projecting from the endwall, each airfoil having a first side and an opposite second side extending axially in chord between a leading edge and a trailing edge; a convex profiled region extending from the endwall adjacent the first side of at least one of said plurality of airfoils and near the leading edge of the at least one of said plurality of airfoils, the convex profiled region gradually increasing in radial height from the first side of said at least one of said plurality of airfoils to a local maximum in radial extent, the local maximum in radial extent being separated by a predetermined distance from the first side of said at least one of said plurality of airfoils; and a concave profiled region in the endwall adjacent the first side of said at least one of said plurality of airfoils and aft of the convex profiled region.