LA METHODE DU MODELE RUGUEUX (MMR) APPLICATION AU CALCUL DE LA PROFONDEUR NORMALE DANS UNE CONDUITE CIRCULAIRE

Abstract

A new method is presented to compute the normal depth in circular conduit. This is the rough model method (RMM). It states that the linear dimension of a conduit or channel is equal to the linear dimension of a referential rough model corrected by the effect of a non-dimensional correction factor. The method is based on the Colebrook-White and Darcy-Weisbach relationships, applicable to the entire domain of turbulent flow. From the relationship governing the flow in the rough model, the normal depth in a circular conduit is explicitly deduced.