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The behavior of supercavitating and cavitating flow around a conical body of revolution with and without ventilation at several angles of attack was studied experimentally. The hydrodynamical forces for a range of cavitation number were measured. Comparisons of the appearance and the hydrodynamical forces in condition of cavity with and without ventilation were made over the same range of the cavitation number, and a well agreement was obtained. The changes of the drag were especially studied. The experimental results showed that the drag of the model decreased with the presence of supercavity under the ventilation condition.
The behavior of supercavitating and cavitating flow around a conical body of revolution with and without ventilation at several angles of attack was studied experimentally. The hydrodynamical forces for a range of cavitation number were measured. Comparisons of the appearance and the hydrodynamical forces in condition of cavity with and without ventilation were made over the same range of the cavitation number, and a well agreement was obtained. The changes of the drag were more studied. The experimental results showed that the drag of the model decreased with the presence of supercavity under the ventilation condition.