Entropy velocity profile: application in natural river

Recent studies, developed in open channel flow and referred to the use of entropy and probability concepts for the characterisation of velocity distribution, have shown a suitable relationship able to describe the flow properties through a simple and single parameter easy to derive. Several analyses have been carried on comparing the entropy profile to those obtained by logarithm and power laws showing the good performance in the water discharge and flow resistance estimation. Almost all of these analyses reported in literature are performed in regular flows and only few are referred to natural rivers scenarios. The present paper is addressed to employ the relation on natural river data extending the application field and showing original results in terms of scaling application of velocity law.