Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 14, issue 1
Articles | Volume 14, issue 1
https://doi.org/10.5194/esurf-14-75-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-75-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 1
Research article
 | 
21 Jan 2026
Research article |  | 21 Jan 2026

On the testing of grain shape corrections to bedload transport equations with grain-resolved numerical simulations

Yulan Chen, Orencio Durán, and Thomas Pähtz

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Short summary
Bedload transport occurs when a sufficiently strong flow of fluid shears a bed of loose sedimentary grains of millimeter or larger size. Here, we show that a recently proposed artificial numerical method to alter fluid-particle interactions in grain-resolved numerical bedload simulations is physically unrealistic. We conclude, supported by independent modeling, that data created using this method, unlike previously claimed, does not resolve the issue of grain shape effects on bedload transport.
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