Ghomri, A.Debabeche, M.Riguet, F.2020-10-152020-10-152011-01-01Articale in Journal of fundamental and Applied Sciences Vol. 03 N. 011112-9867http://dspace.univ-eloued.dz/handle/123456789/7125Articale in Journal of fundamental and Applied Sciences Vol. 03 N. 01This study aims to study the hydraulic jump controlled by threshold, moving in a channel profile 'U' bottomed rough for a single roughness. Functional relations in dimensionless terms, linking the different characteristics of the projection, showing the effect of roughness of the bottom of the channel are obtained.frHydraulic jump, roughness, stilling basin, channel bottom rough.Article