MODIFICATION OF A PARAMETRIC WAVE MODEL
This study was undertaken to develop a simple wave model for computing the transformation of root mean square wave height. The parametric wave approach of Battjes and Janssen (1978) was used as a framework for developing the models. The energy dissipation in the wave model is expressed as the product of fraction of breaking waves and energy dissipation of a single broken wave. The fraction of breaking waves was modified in this study. The fraction of breaking waves was not derived from the assumed probability of wave breaking (as did in the common derivation), but derived directly from the measured wave heights by inverting the wave model. Experimental data of root mean square wave height transformation from 13 sources,covering 1,723 cases of wave and beach conditions, have been collected for verifying the models.The experiments cover a wide range of wave and beach conditions, including small-scale, largescale and field experiments. The modified model was also compared with three existing models,which were developed based on the parametric wave approach. The modified model gives very good accuracy for a wide range of wave and beach conditions and better than those of existing models.
Winyu Rattanapitikon Sangapol Sawanggun
Civil Engineering Program, Sirindhorn International Institute of Technology,Thammasat University, Pathum Thani 12121, Thailand
国际会议
第四届亚太地区海岸会议(the Fourth International Conference on Asian and Pacific Coasts)
南京
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）