Ships – Hull or hull adjunct employing fluid dynamic forces to... – Having hydrofoil
Patent
1992-04-17
1993-06-29
Basinger, Sherman
Ships
Hull or hull adjunct employing fluid dynamic forces to...
Having hydrofoil
114 15, B63B 3800, B63G 1302
Patent
active
052224554
ABSTRACT:
In accordance with the present invention, a device to suction off the portion of the boundary layer closest to the hull and expel it alongside the ship is provided. The invention comprises a casing mounted in substantially parallel spaced alignment to the ship hull for diverting the portion of the ship boundary layer in immediate proximity to the underwater hull, at least one pump in communication with the casing for drawing up water from the ship boundary layer that enters into the casing, and at least one outlet nozzle in communication with the pump for expelling the water alongside the hull. The invention removes the portion of the fluid with the highest concentration of vorticity thereby removing the mechanism by which the "inverse bubbles" and floating drops persist far downstream of the ship's stern and thus suppressing the source of the most detectable features of the ship's wake radar image.
REFERENCES:
patent: 1747817 (1930-02-01), Choquette
patent: 2401583 (1946-06-01), Redfield et al.
patent: 2699644 (1955-01-01), Coanda
patent: 2954750 (1960-10-01), Crump et al.
patent: 3020872 (1962-02-01), Gierczic
patent: 3339516 (1967-09-01), Lenci
patent: 3374971 (1968-03-01), Heskestad
patent: 4086867 (1978-05-01), Stricker et al.
patent: 4395965 (1983-08-01), Lang
patent: 4993663 (1991-02-01), Lahti et al.
"Hydrodynamic Stability and Vorticity in a Ship-Model Wake", Roger J. Fur Feb. 1990.
"A Free-Surface Vorticity Layer Model of the Ships Wake", Roger J. Furey, Aug. 1989.
Basinger Sherman
Borda Gary G.
The United States of America as represented by the Secretary of
LandOfFree
Ship wake vorticity suppressor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ship wake vorticity suppressor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ship wake vorticity suppressor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1748053