Turbine row with diffusive geometry
AssigneePurdue Research Foundation
InventorsGuillermo Paniagua-Perez, Sergio Grasa Martinez
Life of this patent
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Abstract
A turbine row for an axial or mixed-flow fluid machine may include an airfoil, having a leading edge, a trailing edge, a pressure surface and a suction surface. The turbine row may further include two endwalls, extending from upstream of the airfoil leading edge to downstream of the airfoil trailing edge. The endwalls may define an inlet upstream of the leading edge of the airfoil and an outlet downstream of the airfoil. The endwalls have a contoured geometry which provides an increase in channel height from the inlet to the outlet and guarantees a throat area larger than the area of the inlet.
Claims21
A turbine row for an axial or mixed-flow fluid machine, comprising
- an airfoil, having a leading edge, a trailing edge, a pressure surface and a suction surface;
- and
- two endwalls, extending from upstream of the airfoil leading edge to downstream of the airfoil trailing edge,
- wherein the endwalls define an inlet upstream of the leading edge of the airfoil and an outlet downstream of the airfoil, wherein the endwalls have a contoured geometry which provides an increase in channel height from the inlet to the outlet and guarantees a throat area larger than the area of the inlet.
Dependencies are inferred from the claim text.