V.A.Voskoboinick, V.T.Grinchenko, A.P.Makarenkov The correlation characteristics of the wall pressure fluctuations field beneath turbulent boundary layer, formed by a longitudinal flow of the flexible extended cylinder |
Applied hydromechanics, Vol. 3 (75) ¹ 2, (2001) |
| The results of experimental researches of the correlation characteristics of the wall pressure fluctuations of turbulent boundary layer, formed by a longitudinal flow of the flexible extended cylinders are given. It is revealed, that intencity of the wall pressure fluctuations of turbulent boundary layer on the flexible cylinder is higher, than on a flat plate and rigid cylinder. The pressure educated vortical structures are transferred downstream along a longitudinal axis of the cylinder. The velocityof generation of maximum ratings of space-time correlation factor on the flexible cylinder is higher, than on a plate, but is lower, than on a rigid cylinder. The large-scale vortical systems have the greater time of "life" and are transferred on large distances, than small-scale high frequency vortical structures. |
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| TEXT LANGUAGE: Russian |