ANALYSIS OF THE CAVITATING FLOW AROUND THE HORN-TYPE RUDDER IN THE RACE OF A PROPELLER
2001
This paper describes numerical methods by a mixed formulation of the boundary value problem (BVP) for
the prediction of the cavitating flow around the horn-type rudder working behind a propeller. The blade BVP
is treated by the classical vortex lattice method, whereas the rudder BVP is solved by the surface
panel method. The three-dimensional flow around the rudder and the propeller is computed
simultaneously, considering the interactions between them. A modified kinematic boundary condition is
applied to predict the mean velocity and flow volume through gap flow region of the horn-type rudder.
To validate the numerical scheme, an experiment is performed in large cavitation tunnel.
The surface pressure distributions and cavity patterns on the horn-type rudder are investigated and
compared with computational results, showing good agreement with measured results.
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