Patent ID: 7887297

Claim:
An airfoil array comprising a laterally extending endwall with a series of airfoils projecting therefrom, each airfoil having a suction surface corresponding to an airfoil suction side and a pressure surface corresponding to an airfoil pressure side; the airfoils cooperating with the endwall to define a series of fluid flow passages, the suction surface of a first airfoil defining a suction side of a first fluid flow passage, the pressure surface of a second airfoil defining a pressure side of the first fluid flow passage; and wherein the endwall has a pressure side hump that blends into a less elevated endwall profile with increasing lateral displacement toward the suction side of the first fluid flow passage, the less elevated profile being noncomplementary with respect to the hump, said hump having at least a portion extending from the pressure side of the second airfoil, the hump having a concave downward profile, and the hump being wholly disposed on the pressure side of the second airfoil.