Rudder tab for suppression of tip vortex cavitation

摘要

Cavitation of a hydrofoil element, such as the rudder of a marine vessel, from exposure to a body of water during onset flow at different angles to the chordal axis of the rudder profile, is suppressed by a tab on the lower end tip of the rudder. Such tab has external surfaces thereon which affect flow separation relative to the rudder so as to suppress or delay cavitation.