Hydrodynamic sections

Details Hydrodynamic sections Hydrodynamic sections

1973-11-12

1976-03-30

Blix, Trygve M.

Ships

Building

Observation boats

B63B 118

Patent

active

039466884

ABSTRACT:
A method of designing hydrodynamic sections having improved characteristics is described wherein a desired pressure profile and boundary layer conditions for the surface of an undefined section are established at operating velocities for the section and a hydrodynamic section is analytically designed to provide the desired characteristics. One preferred embodiment of the hydrodynamic section meeting the established pressure profile and boundary layer conditions is disclosed having a flat bottom and upper surface defined by a plurality of circular arcs.

REFERENCES:
patent: 1480327 (1924-01-01), Wisenant
patent: 1752378 (1930-04-01), Gobble
patent: 2123096 (1938-07-01), Charpentier
patent: 3343512 (1967-09-01), Rasmussen
patent: 3756540 (1973-09-01), Williams
Numachi; "Cavitation Tests on Hydrofoils . . ;" Journal of Basic Engineering; 9-1969; pp. 423-424.

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