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A two-dimensional vertical mathematical model has been developed tostudy the flow structure over a trench and the bed level changes in case of suspended sediments and bed load sediment. The morphological process is induced by the incoming current or current-wave combination. The continuity equation and momentum equations forthe sediment now are given, in which the k-ε turbulence model is used. Comparison withmeasurements shows that the agreement for the morphological processes of a trench is fairand the numerical simulation is satis factory.
A two-dimensional vertical mathematical model has been developed tostudy the flow structure over a trench and the bed level changes in case of suspended sediments and bed load sediment. The morphological process is induced by the incoming current or current-wave combination. The continuity equation and momentum equations forthe sediment now are given, in which the k-ε turbulence model is used. Comparison with measurements shows that the agreement for the morphological processes of a trench is fairand the numerical simulation is satis factory.