Turbine rotor blade with coupon having corrugated surface(s)

A turbine rotor blade includes an airfoil body having a leading edge, a trailing edge and a smooth outer surface. A cutout is included within at least one of the leading edge and the trailing edge, the cutout removing a predetermined area of the airfoil body. A coupon is coupled in the cutout to rep...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Fredmonski, Adam John, Jones, Jeffrey Clarence
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A turbine rotor blade includes an airfoil body having a leading edge, a trailing edge and a smooth outer surface. A cutout is included within at least one of the leading edge and the trailing edge, the cutout removing a predetermined area of the airfoil body. A coupon is coupled in the cutout to replace the predetermined area of the airfoil body. The coupon includes a first corrugated surface on at least a portion of an outer surface thereof. The coupon allows for the addition of advantageous wake mixing and cooling efficiencies to preexisting blades.