Abstract
The procedure of wave energy dissipation after breaking have been investigated with trains of the regular wave. To obtain the data for wave breaking and its deformation, experiments have been conducted by utilizing a horizontal step adjoining to a combined slope of 1/20 and 1/10.After breaking, the wave height decreases by dissipation but attains a stable value at some distance from the breaking point. Experimental results show that the stable wave is affected considerably bythe wave period. The study gives the general form of stable wave height.A new one dimensional wave deformation model is proposed, being coupled with an approximated shoaling coefficient before wave breaking and the new energy dissipation term after breaking. It was compared with the experimental data. It predicts well the wave height deformation before and after wave breaking even on the abrupt change of the depth.
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