| 摘要 |
A turbo-machine (40) having a vortex elimination device (56, 58, 74) disposed at the intersection of a blade (46) or vane (44) and its end wall (50, 54, 72). The vortex elimination device (56, 58, 74) may have a generally triangular shape with a straight (58) or curvilinear (56) leading edge and may be formed to be integral (56, 74) with or attached to (58) the airfoil (52, 70) and endwall (50, 54, 72). The vortex elimination device prevents the formation of a leading edge horseshoe vortex as the flow stream passes over the leading edge of the airfoil by generating a radial leading edge force that counters the radial equilibrium and stagnated flow forces, thereby providing a smooth flow stream around the airfoil leading edge.
|
