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A new type numerical model for action balance equation in simulating nearshore waves

  • Yixin Yan
  • Fumin Xu
  • Lihua Mao
Notes

Abstract

Several current used wave numerical models are briefly described, the computing techniques of the source terms, numerical wave generation and boundary conditions in the action balance equation model are discussed. Not only the quadruplet wave-wave interactions, but also the triad wave-wave interactions are included in the model, so that nearshore waves could be simulated reasonably. The model is compared with the Boussinesq equation and the mild slope equation. The model is applied to calculating the distributions of wave height and wave period field in the Haian Bay area and to simulating the influences of the unsteady current and water level variation on the wave field. Finally, the developing tendency of the model is discussed.

Keywords

action balance equation numerical generating waves quadruplet wave-wave interactions triad wave-wave interactions Boussinesq equation mild slope equation 

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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Yixin Yan
    • 1
  • Fumin Xu
    • 1
  • Lihua Mao
    • 1
  1. 1.Research Institute of Coastal & Ocean EngineeringHohai UniversityNanjingChina

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