Overtopping bore impact forces on a dike mounted vertical wall were measured in similar large-scale (Froude length scale factor 1-to-4.3) and small-scale (Froude length scale factor 1-to-25) models. The differences due to scale effects were studied, by comparing the up-scaled force measurements from both models in prototype. It was noted that if a minimum layer thickness, velocity of the overtopping flow and water depth at the dike toe were maintained in the small-scale model, the resulting differences in impact force due to scale effects are within the range of differences due to non-repeatability and model effects.
Non-repeatability, scale- And model effects in laboratory measurement of impact loads induced by an overtopped bore on a dike mounted wall / Streicher M.; Kortenhaus A.; Hughes S.; Hofland B.; Suzuki T.; Altomare C.; Marinov K.; Chen X.; Cappietti L.. - ELETTRONICO. - 3:(2019), pp. 1-10. (Intervento presentato al convegno ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 tenutosi a gbr nel 2019) [10.1115/OMAE2019-96703].
Non-repeatability, scale- And model effects in laboratory measurement of impact loads induced by an overtopped bore on a dike mounted wall
Cappietti L.
2019
Abstract
Overtopping bore impact forces on a dike mounted vertical wall were measured in similar large-scale (Froude length scale factor 1-to-4.3) and small-scale (Froude length scale factor 1-to-25) models. The differences due to scale effects were studied, by comparing the up-scaled force measurements from both models in prototype. It was noted that if a minimum layer thickness, velocity of the overtopping flow and water depth at the dike toe were maintained in the small-scale model, the resulting differences in impact force due to scale effects are within the range of differences due to non-repeatability and model effects.
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