Aerodynamically mistuned airfoils for unsteady loss reduction
AssigneesGeneral Electric Company, GE Avio S.r.l.
InventorsFrancesco Bertini, Davide Torzo, Pratish Patil, John Joseph, Mahendran Manoharan, Ganesh Seshadri
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Abstract
Aerodynamically mistuned airfoils for unsteady loss reductions are disclosed herein. An example apparatus disclosed herein includes a disk, a first airfoil coupled to the disk, the first airfoil having a first geometry, and a second airfoil coupled to the disk adjacent to the first airfoil, the second airfoil having a second geometry different than the first geometry, the first airfoil and the second airfoil produce non-uniform wake passing times during operation of the disk.
Claims20
An apparatus comprising:
- a disk;
- a first airfoil coupled to the disk, the first airfoil having a first geometry including a first curvature with a corresponding first axial pressure distribution;
- and
- a second airfoil coupled to the disk adjacent to the first airfoil, the second airfoil having a second geometry including a second curvature with a corresponding second axial pressure distribution, the first axial pressure distribution different than the second axial pressure distribution;
- a first channel between the first airfoil and the second airfoil;
- and
- a second channel adjacent to the first channel, the first airfoil and the second airfoil producing non-uniform wake passing times in the first channel and the second channel during operation of the disk.
A section of a gas turbine engine comprising:
- a first row of airfoils;
- and
- a second row of airfoils including:
- a first airfoil having a first geometry including a first curvature with a corresponding first axial pressure distribution;
- and;
- and
- a second airfoil disposed adjacent to the first airfoil, the second airfoil having a second geometry including a second curvature with a corresponding second axial pressure distribution, the first axial pressure distribution different than the second axial pressure distribution;
- a first channel to receive first wake characteristics from the first row;
- and
- a second channel to receive second wake characteristics from the first row, the first wake characteristics different than the second wake characteristics.
Dependencies are inferred from the claim text.