Abstract
Supercavitating vehicle is almost surrounded by a cavity and therefore reaches very high speed and large range due to the significant reduction in skin friction drag. Configuration optimization contributes to further improve speed and range for the vehicle. In the few previous works, natural supercavitating vehicle has been focused to optimize its configuration in terms of overall dimensions, mass distribution and control surface. Ventilation is also taken into account and determined in the optimization process here. The configuration optimizations for natural and ventilated supercavitating vehicles are comparatively investigated and the results show that the optimal value of the cavitator radius is smaller for the ventilated supercavity which results in smaller cavitator drag, higher vehicle speed and consequently higher range.
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