A ship setting a small duct of the present invention includes a propeller 10 and a duct 20, a propeller load condition of the ship's hull 1 in an actual sea is set to 1.0 or more and a vortex resistance of the ship's hull 1 in the actual sea is set to 10% or more, the duct 20 is a small duct, and a diameter Ddin of the duct 20 is set to 20% or more and 50% or less of a diameter Dp of the propeller 10. According to this, in an actual sea where a propeller loading is increased, cavitation is suppressed, and a load distribution of the propeller 10 in its radial direction which governs efficiency is optimized by using interference with respect to the small duct 20.
SHIP WITH SMALL DUCT AND METHOD FOR ASSESSING APPLICATION OF SMALL DUCT ON SHIP
SCHIFF MIT KLEINEM KANAL UND VERFAHREN ZUR BEURTEILUNG DER ANWENDUNG EINES KLEINEN KANALS AUF EINEM SCHIFF
NAVIRE AVEC PETIT CARÉNAGE ET PROCÉDÉ D'ÉVALUATION DE L'APPLICATION D'UN PETIT CARÉNAGE SUR UN NAVIRE
2016-11-02
Patent
Electronic Resource
English
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