R. FuentesJulián AguirreIsabel FlorezMaritza Ramírez2026-03-222026-03-221986https://andeanlibrary.org/handle/123456789/60855An experimental study has been achieved on the supercritical flow past a step change of boeoeon roughness: rough to smooth. The analysis of experimental data has allowed for the introduction of two dimensionless parameters; they define the evolution of the velocity profile past the change of roughness.esPhysicsDimensionless quantityGeologyarticle