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Article

Flood Suspended Sediment Transport: Combined Modelling from Dilute to Hyper-Concentrated Flow

1
Faculty of Engineering and Informatics, University of Bradford, Bradford DB7 1DP, UK
2
Galgotias College of Engineering and Technology, Greater Noida, Uttar Pradesh 201310, India
3
National Institute of Technology (NIT), Warangal, Telangana 506004, India
4
Department of Civil Engineering, University of Zanjan, Zanjan 45371-38791, Iran
5
Department of Civil and Environmental Engineering, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
6
Department of Civil Engineering, Indian Institute of Technology, Kharagpur 721302, India
*
Author to whom correspondence should be addressed.
Academic Editors: Jorge Leandro and James Shucksmith
Water 2021, 13(3), 379; https://doi.org/10.3390/w13030379
Received: 13 December 2020 / Revised: 24 January 2021 / Accepted: 28 January 2021 / Published: 1 February 2021
(This article belongs to the Special Issue Modelling of Floods in Urban Areas)
During flooding, the suspended sediment transport usually experiences a wide-range of dilute to hyper-concentrated suspended sediment transport depending on the local flow and ground conditions. This paper assesses the distribution of sediment for a variety of hyper-concentrated and dilute flows. Due to the differences between hyper-concentrated and dilute flows, a linear-power coupled model is proposed to integrate these considerations. A parameterised method combining the sediment size, Rouse number, mean concentration, and flow depth parameters has been used for modelling the sediment profile. The accuracy of the proposed model has been verified against the reported laboratory measurements and comparison with other published analytical methods. The proposed method has been shown to effectively compute the concentration profile for a wide range of suspended sediment conditions from hyper-concentrated to dilute flows. Detailed comparisons reveal that the proposed model calculates the dilute profile with good correspondence to the measured data and other modelling results from literature. For the hyper-concentrated profile, a clear division of lower (bed-load) to upper layer (suspended-load) transport can be observed in the measured data. Using the proposed model, the transitional point from this lower to upper layer transport can be calculated precisely. View Full-Text
Keywords: parameterised power-linear model; hyper concentration; dilute concentration; suspended sediment transport; flood; sediment size parameter; rouse number; mean concentration; flow depth parameterised power-linear model; hyper concentration; dilute concentration; suspended sediment transport; flood; sediment size parameter; rouse number; mean concentration; flow depth
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MDPI and ACS Style

Pu, J.H.; Wallwork, J.T.; Khan, M.A.; Pandey, M.; Pourshahbaz, H.; Satyanaga, A.; Hanmaiahgari, P.R.; Gough, T. Flood Suspended Sediment Transport: Combined Modelling from Dilute to Hyper-Concentrated Flow. Water 2021, 13, 379. https://doi.org/10.3390/w13030379

AMA Style

Pu JH, Wallwork JT, Khan MA, Pandey M, Pourshahbaz H, Satyanaga A, Hanmaiahgari PR, Gough T. Flood Suspended Sediment Transport: Combined Modelling from Dilute to Hyper-Concentrated Flow. Water. 2021; 13(3):379. https://doi.org/10.3390/w13030379

Chicago/Turabian Style

Pu, Jaan H., Joseph T. Wallwork, Md. A. Khan, Manish Pandey, Hanif Pourshahbaz, Alfrendo Satyanaga, Prashanth R. Hanmaiahgari, and Tim Gough. 2021. "Flood Suspended Sediment Transport: Combined Modelling from Dilute to Hyper-Concentrated Flow" Water 13, no. 3: 379. https://doi.org/10.3390/w13030379

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