Yu.V.Kanarska, V.S.Maderich Model of the impact of propeller ship jet on the bottom and coasts |
Applied hydromechanics, Vol. 7 (79) ¹ 2, (2005) |
The 3D numerical non-hydrostatic free-surface hydrodynamic model is presented that was designed for modelling of bottom and bank stability subjected by ship propeller jets. Unlike all known models it describes three-dimensional fields of velocities generated by ship propellers, turbulence intensity and length scale in the given domain of arbitrary bottom and coastal topography. The model describes as near field in propeller jet as far field. The time and space varying bottom shear stresses that caused bottom erosion and damage for bottom habitat are calculated. The results of simulations are compared with the laboratory experiment. |
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TEXT LANGUAGE: Russian |