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Principles of River Hydraulics pp 49–76Cite as

Initiation of Sediment Motion

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Abstract

The incipient motion condition is the hydrodynamic condition, i.e., of velocity and flow depth, whereby the particles lying on a streambed start to move under the action of fluid.

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Notes

  1. 1.

    Alternatively, the mobility of the single grain size class \(\theta _{c\,_j}\) can be calculated with reference to the expected mobility as if the material were uniform, with the same granulometry as that in question and multiplied by a hiding factor as well. Of course in the presence of rough wall, the two definitions coincide in all grain size classes.

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Authors and Affiliations

  1. Department of Civil, Mechanical and Environmental Engineering, University of Trento, Trento, Italy

    Aronne Armanini

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  1. Aronne Armanini
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Correspondence to Aronne Armanini .

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Armanini, A. (2018). Initiation of Sediment Motion. In: Principles of River Hydraulics. Springer, Cham. https://doi.org/10.1007/978-3-319-68101-6_3

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  • DOI: https://doi.org/10.1007/978-3-319-68101-6_3

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