Title:
SAILING BODY AND VISCOUS DRAG REDUCTION METHOD OF SAILING BODY
Document Type and Number:
Japanese Patent JP2023067295
Kind Code:
A
Abstract:
To reduce viscous drag such as friction drag and pressure drag that a hull submerged part in contact with water receives from water when a sailing body, such as a ship and a submarine with a relatively slow ship speed and a large viscous drag, moves.SOLUTION: An eddy current generation is suppressed by rectifying a water flow at a stern of a sailing body 1 adopting a symmetrical wing shape such as NACA0020 or an approximate shape for a water line surface shape of a hull submerged part 2 of the sailing body 1, especially the water line surface shape on a stern side, and hereby the viscous drag due to the shape of the hull submerged part 2 is reduced.SELECTED DRAWING: Figure 1
Inventors:
YAMAMOTO SHIGERU
Application Number:
JP2021178391A
Publication Date:
May 16, 2023
Filing Date:
October 30, 2021
Export Citation:
Assignee:
YAMAMOTO SHIGERU
International Classes:
B63B1/12; B63B1/40; B63G8/00
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