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Author Zhou, Li lan ♦ Gao, Gao ♦ Huijsmans, R. H. M.
Source SpringerLink
Content type Text
Publisher Chinese Ocean Engineering Society
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword wash waves ♦ wave generation model ♦ wave spectrum method ♦ Boussinesq type equation wave model ♦ motions of moored ship ♦ Offshore Engineering ♦ Oceanography ♦ Coastal Sciences ♦ Fluid- and Aerodynamics ♦ Marine & Freshwater Sciences ♦ Numerical and Computational Physics
Abstract It is difficult to compute far-field waves in a relative large area by using one wave generation model when a large calculation domain is needed because of large dimensions of the waterway and long distance of the required computing points. Variation of waterway bathymetry and nonlinearity in the far field cannot be included in a ship fixed process either. A coupled method combining a wave generation model and wave propagation model is then used in this paper to simulate the wash waves generated by the passing ship. A NURBS-based higher order panel method is adopted as the stationary wave generation model; a wave spectrum method and Boussinesq-type equation wave model are used as the wave propagation model for the constant water depth condition and variable water depth condition, respectively. The waves calculated by the NURBS-based higher order panel method in the near field are used as the input for the wave spectrum method and the Boussinesq-type equation wave model to obtain the far-field waves. With this approach it is possible to simulate the ship wash waves including the effects of water depth and waterway bathymetry. Parts of the calculated results are validated experimentally, and the agreement is demonstrated. The effects of ship wash waves on the moored ship are discussed by using a diffraction theory method. The results indicate that the prediction of the ship induced waves by coupling models is feasible.
ISSN 08905487
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-10-01
Publisher Place Nanjing
e-ISSN 21918945
Journal China Ocean Engineering
Volume Number 29
Issue Number 5
Page Count 14
Starting Page 757
Ending Page 770

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Source: SpringerLink