I.G.Nesteruk Partial cavitation on slender bodies |
Applied hydromechanics, Vol. 6 (78) ¹ 3, (2004) |
| The partial cavitation on long axisymmetric bodies in ideal incompressible imponderable fluid are investigated. The simplicity of the first approximation equation enables to explain a series of effects and to calculate several axisymmetric cavities on one body simultaneously. It is shown that cavities may be not only elliptic but also hyperbolic, the corresponding cavitation number regions are found. By means of the linear and non-linear approaches, the shapes of the concave axisymmetric cavities are calculated. Some of this long cavities do not need any rigid closing body and can be used for a considerable total drag reduction of the bodies moving in the water at high velocities. |
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| TEXT LANGUAGE: Ukrainian |