Analysis of the Cavitating Flow Around the Horn-type Rudder in the Race of a Propeller

Han, Jae-Moon and Kong, Do-Sung and Song, In-Haeng and Lee, Chang-Sup (2001) Analysis of the Cavitating Flow Around the Horn-type Rudder in the Race of a Propeller. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA.

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Abstract

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.

EPrint Type:	Conference or Workshop Item (Lecture)
Uncontrolled Keywords:	cavitation, turbomachinery
Subjects:	All Records Session B9 Turbomachinery 3
ID Code:	213
Deposited By:	Jae-Moon Han
Deposited On:	06 May 2001
Record Number:	CAV2001:sessionB9.005
Official Persistent URL:	http://resolver.caltech.edu/CAV2001:sessionB9.005
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