I.G.Nesteruk, O.M.Zverkhovskiy
Experimental investigation of the entry to water of axisymmetric bodies with negative pressure gradients

Applied hydromechanics, Vol. 12 (84) ¹ 3, (2010) p.47-53
A series of water entrance tests for different special axisymmetric bodies with the negative pressure gradients along the surface has been carried out. Different flow patterns were revealed. In particular, for the smaller velocities, the flow without a cavity takes place. The increase in the entrance velocity leads to the typical non-steady supercavity flow. The body shape influences significantly the critical entrance velocity at which the flow pattern changes. In particular, an example of a slender body showed the flow pattern without a cavity for the whole range of the available entrance velocity (to 6 m/s).
KEY WORDS:
axisymmetric bodies, negative pressure gradients, supercavity flow
TEXT LANGUAGE: Ukrainian