A Method to Evaluate Soft Mud Transport due to Irregular Waves and Currents

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  • 不規則波と流れ共存下での軟らかい底泥の移動量予測方法
  • フキソクハ ト ナガレ キョウゾン カ デ ノ ヤワラカイ ソコ デイ ノ イドウリョウ ヨソク ホウホウ

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A series of mud mass transport experiments were conducted under the irregular waves and currents co-existing field in a two-dimensional wave flume. Results were compared to theoretical values that were calculated by the visco-elastic-plastic model. As a result, mud mass transport under irregular waves and current can be well evaluated by using visco-elastic-plastic model. The model was applied to each element of irregular wave classified by the joint distribution of wave heights and wave periods. This method gives evaluation with good accuracy for different conditions of current and spectrum shapes. It has been found out that spectrum shapes don't give significant influences on the mud mass transport.

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