Modeling of fully nonlinear wave evolution over a submerged bar

A three-dimensional fully nonlinear numerical wave tank (NWT) is developed by using a time-domain higher-order boundary element method (HOBEM). The source generation of waves is adopted to generate input waves. The mixed Eulerian-Lagrangian (MEL) method is utilized to track and refresh the free surf...

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Bibliographic Details
Published in:Journal of hydrodynamics. Series B 2010-10, Vol.22 (5), p.83-90
Main Authors: Zhou, Bin-zhen, Teng, Bin, Chen, Li-fen, Ning, De-Zhi
Format: Article
Language:English
Subjects:
Engineering
Engineering Fluid Dynamics
fully nonlinearity
HOBEM
Hydrology/Water Resources
Numerical and Computational Physics
Simulation
Source function
submerged bar
Theoretical Hydrodynamics
wave propagation
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Summary:A three-dimensional fully nonlinear numerical wave tank (NWT) is developed by using a time-domain higher-order boundary element method (HOBEM). The source generation of waves is adopted to generate input waves. The mixed Eulerian-Lagrangian (MEL) method is utilized to track and refresh the free surface. The model is applied to three examples of wave evolution and harmonic decomposition during propogation over a submerged bar and numerical results are compared with the experimental data and the solutions of Boussinesq model. It shows that the present model agrees better with the measurements than the Boussinesq model and are more adaptable for stronger nonlinear waves.
ISSN:1001-6058
1878-0342
DOI:10.1016/S1001-6058(09)60174-8