Accession Number : AD0288119

Title :   ON SHIPS WITH ZERO WAVE RESISTANCE

Descriptive Note : Technical rept.,

Corporate Author : HYDRONAUTICS INC LAUREL MD

Personal Author(s) : YIM,B.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : Takahei (1960) studied the waveless bow and Kumano (1960) investigated the waveless stern. They tried to match the amplitude function of a doublet, which is a function of the doublet strength and the Froude number, as close as possible with the amplitude function of a ship. However, it was not clear whether there even existed a doublet distribution whose amplitude is exactly the same as that of the ship. It is shown in this report that such a doublet distribution can indeed be found but that it extends along a line from the free surface to infinite depth. However, this need not be a serious restriction since it will be shown that the effect of discarding that part of the doublet distribution extending from some finite depth to infinity can be made very small. With such a doublet distribution at the bow and stern the waves from the bow and stern of the given symmetric ship may be completely canceled and the ideal fluid wave resistance of the ship becomes zero. (Author)

Descriptors :   *OCEAN WAVES, *SHIP HULLS, DESIGN, FLUID FLOW, RESISTANCE (ELECTRICAL), VELOCITY, WAVE CHARACTERISTICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE