Abstract
The volumetric pressure drag for the standard supercavitating bodies (such as disc or cone) and for the cavitators with curvature was estimated. Analytic formulas for the skin-friction drag of the unseparated slender axisymmetric shapes are presented. It was shown that the main reserve of the drag reduction consists in using shapes providing the unseparated flow pattern. The volumetric drag coefficients for supercavitating and unseparated flow patterns were compared. It was shown that the standard supercavitating flow pattern is preferable for smaller values of the volumetric Reynolds number 7 10 Re <
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