A simplified simulation model for predicting two-dimensional beach transformation was developed The on the recent results of research works on wave transformation, near bottom velocity and sediment transport. The wave field was calculated by the energy flux method based on either cnoidal or linear wave theory in the linear zone, and by Mizuguchi's energy dissipation model in the surf zone. The velocity field was calculated by the approximate method of Koyama and Iwata using the cnoidal wave profile or by linear wave theory. The sediment transport formula of Shibayama and Horikawa, which includes the effect of suspended sediment caused by vortices created in the vicinity of ripples, was used to calculate transport rates. The model was found to give reasonable results. The results were compared with various laboratory data and the feasibility of the model was discussed.
|Number of pages||10|
|Journal||Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers|
|Issue number||357 /II-3|
|Publication status||Published - 1985 May 1|
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