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COMPARISON BETWEEN BOUSSINESQ EQUATIONS AND MILD-SLOPE EQUATIONS MODEL 被引量:1

COMPARISON BETWEEN BOUSSINESQ EQUATIONS AND MILD-SLOPE EQUATIONS MODEL
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摘要 In this paper, the Poussinesq equations and mild-slope equation of wave transformation in near-shore shallow water were introduced and the characteristics of the two forms of equations were compared and analyzed. Meanwhile, a Boussinesq wave model which includes effects of bottom friction, wave breaking and subgrid turbulent mixing is established, slot technique dealing with moving boundary and damping layer dealing with absorbing boundary were estab lished. By adopting empirical nonlinear dispersion relation and including nonlinear term, the mild-slope equation model was modified to take nonlinear effects into account. The two types of models were validated with the experiment results given by Berkhoff and their accuracy was analysed and compared with that of correlated methods. In this paper, the Poussinesq equations and mild-slope equation of wave transformation in near-shore shallow water were introduced and the characteristics of the two forms of equations were compared and analyzed. Meanwhile, a Boussinesq wave model which includes effects of bottom friction, wave breaking and subgrid turbulent mixing is established, slot technique dealing with moving boundary and damping layer dealing with absorbing boundary were estab lished. By adopting empirical nonlinear dispersion relation and including nonlinear term, the mild-slope equation model was modified to take nonlinear effects into account. The two types of models were validated with the experiment results given by Berkhoff and their accuracy was analysed and compared with that of correlated methods.
出处 《Journal of Hydrodynamics》 SCIE EI CSCD 2006年第1期40-47,共8页 水动力学研究与进展B辑(英文版)
关键词 Boussinesq equations mild-slope equation wave transformation correlative analysis Boussinesq equations, mild-slope equation,wave transformation, correlative analysis
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  • 1Nwogu O.1993: Alternative form of Boussinesq Equations for Nearshore Wave Propagation, J.Waterway, Port , Coastal & Ocean Eng[].American Society of Continuing Education.
  • 2Radder A. C.1979: On the parabolic equation Method for Water-wave Propagation, J[].Journal of Fluid Mechanics.

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