A new approach to numerical simulation of nonlinear wave propagation and its experimental verification Introducing utility velocity variables

ZHANG Hong-sheng; FENG Wen-jing; SHANG Hui

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ZHANG Hong-sheng, FENG Wen-jing, SHANG Hui. A new approach to numerical simulation of nonlinear wave propagation and its experimental verification Introducing utility velocity variables[J]. Haiyang Xuebao, 2007, 29(5): 161-173.

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A new approach to numerical simulation of nonlinear wave propagation and its experimental verification Introducing utility velocity variables

School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China

Received Date: 2006-08-21
Rev Recd Date: 2006-11-17

Abstract

Abstract

A numerical model is developed with a new type of Boussinesq equations including utility velocity variables employed as the governing equations.In the present model, the seven-point finite difference scheme is used to discretize the spatial derivatives, the fifth-order Runge-Kutta-England scheme is employed to perform the time integration, and the appropriate out flow boundary condition is adopted.Systematic numerical modeling of wave propagation is performed with uniform depth from shallow to deep water and from linear to nonlinear waves.The calculation results show that the present numerical model with utility velocity variables is valid for greater water depth than that without utility velocity variables.The numerical simulation of wave propagation is also performed in a wave tank with a submerged dike, and the comparisons between experimental data and numerical solutions are made.The calculation results show that the present numerical model is more accurate than that without utility velocity variables.
- numerical simulation,
- new type Boussinesq equations,
- utility velocity variables,
- nonlinear waves,
- submerged dike

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References(24)

References

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