A 2D+t SPH model to study the breaking wave pattern generated by fast ships
| Autor: | Salvatore Marrone, Matteo Antuono, M.P. Tulin, Andrea Colagrossi, Claudio Lugni |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Jet (fluid) Deformation (mechanics) Breaking bow waves Fast ship Mechanical Engineering Breaking wave Vertical plane Function (mathematics) Mechanics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics 010101 applied mathematics Smoothed-particle hydrodynamics Smoothed Particle Hydrodynamics Transverse plane Classical mechanics Flow (mathematics) 0103 physical sciences 2D+t model 0101 mathematics Free-surface flows |
| Zdroj: | Journal of fluids and structures 27 (2011): 1199–1215. doi:10.1016/j.jfluidstructs.2011.08.003 info:cnr-pdr/source/autori:Marrone S., Colagrossi A., Antuono M., Lugni C., Tulin M./titolo:A 2D+t SPH model to study the breaking wave pattern generated by fast ships/doi:10.1016%2Fj.jfluidstructs.2011.08.003/rivista:Journal of fluids and structures/anno:2011/pagina_da:1199/pagina_a:1215/intervallo_pagine:1199–1215/volume:27 |
| ISSN: | 0889-9746 |
| DOI: | 10.1016/j.jfluidstructs.2011.08.003 |
| Popis: | A 2D+t approach is applied to study the wave pattern generated by high speed slender ships with a sharp stem. This allows approximating the ship motion through a set of equations which are mathematically equivalent to those governing the unsteady 2D free-surface flow generated by a deformable body in the vertical plane transverse to the ship. To describe the body deformation, a proper modeling of the solid boundaries is needed. To this purpose the fixed ghost particle technique recently developed by the authors for 2D SPH schemes is adopted. Then, an in-depth analysis of the bow breaking wave evolution is provided focusing on the different features of the plunging jet as function of the ship forward velocity. The comparison with experimental data proves the proposed SPH scheme to be robust and accurate. |
| Databáze: | OpenAIRE |
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