High-Velocity Erosion of Sand

Oliver A. Heijmeijer; Arno J. Nobel; Geert Keetels; Cees Van Rhee

doi:10.1061/(ASCE)HY.1943-7900.0001949

High-Velocity Erosion of Sand

Oliver A. Heijmeijer^*, Arno J. Nobel, Geert Keetels, Cees Van Rhee

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Dredging is the relocation of soil. Before the soil can be transported, it has to be loosened. This can be done hydraulically (jetting) or mechanically (cutting). Often, water jets are used to erode the soil layer. Over time, pickup functions have been derived to predict the amount of erosion corresponding to the flow conditions. However, existing pickup functions are inaccurate at high flow velocities. During the current study, erosion experiments have been done at high flow velocities (up to 4.7 m/s) corresponding to a bed shear stress of up to 60 Pa and a Shields parameter (θ) of up to 30. The results of these experiments were compared with a number of well-known data sets and pickup functions.

Original language	English
Article number	04022005
Number of pages	11
Journal	Journal of Hydraulic Engineering
Volume	148
Issue number	5
DOIs	https://doi.org/10.1061/(ASCE)HY.1943-7900.0001949
Publication status	Published - 2022

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Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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title = "High-Velocity Erosion of Sand",

abstract = "Dredging is the relocation of soil. Before the soil can be transported, it has to be loosened. This can be done hydraulically (jetting) or mechanically (cutting). Often, water jets are used to erode the soil layer. Over time, pickup functions have been derived to predict the amount of erosion corresponding to the flow conditions. However, existing pickup functions are inaccurate at high flow velocities. During the current study, erosion experiments have been done at high flow velocities (up to 4.7 m/s) corresponding to a bed shear stress of up to 60 Pa and a Shields parameter (θ) of up to 30. The results of these experiments were compared with a number of well-known data sets and pickup functions. ",

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High-Velocity Erosion of Sand

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