Un Enfoque para el Diseño de Rugosidad de Fondo Tipo “M” (Artificial Alta), en Canales con Régimen Rápido

• DOI: https://doi.org/10.22533/at.ed.317552529044

• Palavras-chave: pendientes pronunciadas, rugosidad de lecho artificial, rugosidad tipo "M"

• Keywords: steep slopes, artificial bed roughness, "M" type roughness

• Abstract: In channels with steep slopes, flow velocities can become so high that it is necessary to modify their roughness to reduce them. This study presents a procedure to determine the level of confidence that can be expected when using "M" type roughness, which is one of the criteria available for designing high artificial bed roughness in lined channels. Based on Buckingham's theorem, expressions are proposed to carry out the mentioned design. The study concludes that the proposed bed roughness results in more stable flows and, although it involves additional costs, it is recommended to consider artificial roughness when significantly reducing the water flow velocity at the end of such channels is desired. This includes an experimental comparison to determine the level of confidence that can be expected from one of the criteria available for the design of high artificial bed roughness in lined channels. The study concludes that the proposed equation to represent "M" type roughness aligns well with experimental works conducted specifically to validate it.