SCALE EFFECTS IN LARGE COASTAL MOBILE BED MODELS

J.W. Kamphuis, R.B. Nairn

Abstract


A series of mobile bed model tests of a prototype circular sand island was performed to determine scale effects. It was found that scale effect was largely a function of mobility number with some secondary effects of Reynolds number, bedform and critical profile depth. It was concluded that a model series using prototype sand grain size is necessary at this time to effect successful extrapolation to prototype.

Keywords


scale effects; bed model; movable bed; large model

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DOI: http://dx.doi.org/10.9753/icce.v19.%25p