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Open AccessArticle

Two-Dimensional Numerical Modeling of Flow in Physical Models of Rock Vane and Bendway Weir Configurations

1
Sedimentation and River Hydraulics Group, Technical Service Center, Bureau of Reclamation, Denver, CO 80022, USA
2
AECOM, Glenwood Springs, CO 81601, USA
3
Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Yong G. Lai
Water 2021, 13(4), 458; https://doi.org/10.3390/w13040458
Received: 1 December 2020 / Revised: 21 January 2021 / Accepted: 22 January 2021 / Published: 10 February 2021
(This article belongs to the Special Issue Multi-Dimensional Modeling of Flow and Sediment Transport)
While there are a wide range of design recommendations for using rock vanes and bendway weirs as streambank protection measures, no comprehensive, standard approach is currently available for design engineers to evaluate their hydraulic performance before construction. This study investigates using 2D numerical modeling as an option for predicting the hydraulic performance of rock vane and bendway weir structure designs for streambank protection. We used the Sedimentation and River Hydraulics (SRH)-2D depth-averaged numerical model to simulate flows around rock vane and bendway weir installations that were previously examined as part of a physical model study and that had water surface elevation and velocity observations. Overall, SRH-2D predicted the same general flow patterns as the physical model, but over- and underpredicted the flow velocity in some areas. These over- and underpredictions could be primarily attributed to the assumption of negligible vertical velocities. Nonetheless, the point differences between the predicted and observed velocities generally ranged from 15 to 25%, with some exceptions. The results showed that 2D numerical models could provide adequate insight into the hydraulic performance of rock vanes and bendway weirs. Accordingly, design guidance and implications of the study results are presented for design engineers. View Full-Text
Keywords: rock vanes; bendway weirs; 2D numerical modeling; SRH-2D; physical model rock vanes; bendway weirs; 2D numerical modeling; SRH-2D; physical model
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MDPI and ACS Style

Baird, D.C.; Abban, B.; Scurlock, S.M.; Abt, S.B.; Thornton, C.I. Two-Dimensional Numerical Modeling of Flow in Physical Models of Rock Vane and Bendway Weir Configurations. Water 2021, 13, 458. https://doi.org/10.3390/w13040458

AMA Style

Baird DC, Abban B, Scurlock SM, Abt SB, Thornton CI. Two-Dimensional Numerical Modeling of Flow in Physical Models of Rock Vane and Bendway Weir Configurations. Water. 2021; 13(4):458. https://doi.org/10.3390/w13040458

Chicago/Turabian Style

Baird, Drew C.; Abban, Benjamin; Scurlock, S. M.; Abt, Steven B.; Thornton, Christopher I. 2021. "Two-Dimensional Numerical Modeling of Flow in Physical Models of Rock Vane and Bendway Weir Configurations" Water 13, no. 4: 458. https://doi.org/10.3390/w13040458

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