G.O.Voropayev, N.V.Rozumnyuk Numerical modeling of the turbulent flow over a deformable surface |
Applied hydromechanics, Vol. 2 (74) ¹ 2, (2000) |
| The system of equations has been obtained that governs hydrodynamical interaction of TBL and a deformable viscoelastic surface simulating cetacean skin. The closure hypothisis have been generalized for the redistribution and turbulent diffusion in the transport equations for the second correlation moments. The boundary condition approximations reflect energy transfer between TBL and viscoelastic layer through the deformed surface. The range of mechanical and geometrical parameters of viscoelastic coatings has been determined as a function of flow speed where friction drag could be reduced. The numerical results obtained allow to explain friction drag reduction that aquatic life can attain. |
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| TEXT LANGUAGE: Russian |