Articles | Volume 14, issue 3
https://doi.org/10.5194/esurf-14-469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-469-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jun 2026
Research article |
| 24 Jun 2026
| 24 Jun 2026
Grain roughness controls on velocity and bed stress fields around a fully protruding obstacle in supercritical flow
Civil and Environmental Engineering Department, University of Idaho, Moscow, ID, 83844, United States of America
Center for Ecohydraulics Research, University of Idaho, Boise, ID, 83702, United States of America
Oscar Link
Civil Engineering Department, Universidad de Concepción, Concepción, Chile
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Short summary
Mountain rivers create fast-flowing water that behaves differently around obstacles compared to slower flows. We used computer simulations and digital bed representation to study how rough riverbeds affect water flow. Our research shows individual grains completely change water movement, creating chaotic patterns instead of organized flows. This makes forces on riverbeds much more variable than previously thought, important for understanding how mountain rivers shape landscapes.
Mountain rivers create fast-flowing water that behaves differently around obstacles compared to...
