B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/20, 244/34,
B63B 1/00 (2006.01) B63H 1/28 (2006.01) B64C 3/14 (2006.01) F01D 5/14 (2006.01) F03D 1/06 (2006.01)
Patent
CA 2006081
ABSTRACT OF THE DISCLOSURE When there is relative movement, at a speed above a critical value, between the trailing edge of a body, such as a hydrofoil or aerofoil section, and a fluid, the fluid flow tends to form a pattern of discrete swirling vortices. Vortex shedding at each side of the trailing edge alternately can cause resonance or "singing" of the section. The effect of this phenomenon is reduced by forming contiguous triangular flat-faced notches in the major surfaces of the section, adjacent the trailing edge, but leaving the profile of the leading edge substantially undisturbed. The notches in one major surface are preferably staggered relative to those in the other major surface.
Fetherstonhaugh & Co.
Marconi Company Limited (the)
LandOfFree
Noise reduction method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Noise reduction method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise reduction method will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1499013