V.M.Kushnir, S.V.Fedorov Modeling of interaction of surface waves with underwater pipeline |
Applied hydromechanics, Vol. 5 (77) ¹ 3, (2003) |
| The boundary values problem of the interaction between field of the surface gravity waves with the underwater pipeline at arbitrary gap between seabed surface and pipeline is considered. The potential flow and linear waves of small amplitudes approximations (Airy waves) are used. The numeral calculations for wave velocities and pressure at different values of the wave perturbation phases and relative gap between pipeline and seabed surface are carried out. The numeral calculations are shown that the local velocity increase (30...35%) are observed for certain values of the relative gap and Keulegan-Carpenter numbers. This range of the relative gap and Keulegan-Carpenter numbers corresponds to the anomalous values of the drag and lifting hydrodynamic coefficients of the wave flow around the pipeline on the laboratory tests [1]. |
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KEY WORDS: *** |
| TEXT LANGUAGE: Russian |