Non-axisymmetric end wall contouring for a turbomachine...

Details Non-axisymmetric end wall contouring for a turbomachine... Non-axisymmetric end wall contouring for a turbomachine...

2006-02-27

2008-12-16

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

C416S19300A, C416S234000, C416SDIG004, C415S191000, C415S210100, C415S914000

Reexamination Certificate

active

07465155

ABSTRACT:
A turbomachine blade row is provided having a hub that includes a non-axisymmetric end wall modified by a transformation function. The blade row further includes a circumferential row of a plurality of airfoil members radially extending from the non-axisymmetric end wall of the hub and forming a plurality of sectoral passages therebetween. A radius of the non-axisymmetric end wall is determined by a transformation function including a plurality of geometric parameters defined by a user based on flow conditions. The plurality of geometric parameters provide for modification of the end wall in both an axial and a tangential direction to include a plurality of concave profiled regions and convex profiled regions.

REFERENCES:
patent: 2918254 (1959-12-01), Hausammann
patent: 4135857 (1979-01-01), Pannone et al.
patent: 4465433 (1984-08-01), Bischoff
patent: 4778338 (1988-10-01), Bessay
patent: 5215439 (1993-06-01), Jansen et al.
patent: 5397215 (1995-03-01), Spear et al.
patent: 5466123 (1995-11-01), Rose
patent: 6017186 (2000-01-01), Hoeger et al.
patent: 6283713 (2001-09-01), Harvey et al.
patent: 6511294 (2003-01-01), Mielke et al.
patent: 6524070 (2003-02-01), Carter
patent: 6561761 (2003-05-01), Decker et al.
patent: 7220100 (2007-05-01), Lee et al.
patent: 2003/0143068 (2003-07-01), Kawasaki

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