Title:
METHOD OF EQUALIZING STERN FLOW STREAM
Document Type and Number:
Japanese Patent JPS5464381
Kind Code:
A
Abstract:
PURPOSE: To eliminate the irregular flow stream into a propeller by radiating ultrasonic wave into water stream from the side of the stern of a ship to equalize the stern flow stream.
CONSTITUTION: Ultrasonic wave is radiated from the opening 8 of an ultrasonic wave generator 9 in a hull of a ship in the vicinity of the separating line 5 of vortex 1 or flow separation generating position in the propeller inflow portion at the stern of the ship to mix and agitate the stern flow stream so as to constrain the occurrence of vortex in order to eliminate the irregular flow stream.
Inventors:
NARITA HIDEAKI
Application Number:
JP12977777A
Publication Date:
May 24, 1979
Filing Date:
October 31, 1977
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
B63H5/07; B63B1/08; B63B1/32; (IPC1-7): B63B1/08; B63B1/32
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