Yu.N.Savchenko, G.Yu.Savchenko Cylinder gliding on the supercavern surface |
Applied hydromechanics, Vol. 9 (81) ¹ 1, (2007) |
| The lifting force of the cylinder gliding on the surface of the semicircular cavity in the working part of the hydrotunnel is considered experimentally. This case is modeling the gliding on the supercavern surface. The dependences for cylinder of the lifting force coefficient on the attack angle, rear edge submersion and the ratio of the cavern radius to the cylinder diameter are given. The compare with the cylinder gliding on the flat surface is showing that the coefficient of the lifting force is increasing with the cylinder radius approaching to the radius of the semicircular cavern (supercavern radius). The coefficient for this case can be 3 ? 4 times greater then the coefficient for the flat surface. The approximation relations for the lift force coefficient calculation are proposed. |
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KEY WORDS: *** |
| TEXT LANGUAGE: Russian |