World Environmental and Water Resources Congress 2018
Numerical Simulation of Sediment Transport and Scouring around Hydraulic Structures on Rivers
Publication: World Environmental and Water Resources Congress 2018: Hydraulics and Waterways, Water Distribution Systems Analysis, and Smart Water
ABSTRACT
In this study, we modified and applied an open source CFD software package, the TELEMAC, to study the sediment transport and scouring processes around Gangjeong Weir on Nakdong River in South Korea. The simulations have been carried out with the real weir and river bathymetry. We particularly have studied the effect of grain size distributions on bed evolutions, and taken into account the flood return periods to evaluate the maximum potential erosion around the hydraulic structures caused by floods. An agreement between numerical result and observation shows the ability of the model to predict maximum potential scoured depths near hydraulic structures.
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ACKNOWLEDGEMENT
This work was supported by the National Research Foundation of Korea grand funded by the Korean Government (NRF-2015R1D1A1A01060880).
REFERENCES
Brière, C., Abadie, S., Bretel, P. and Lang, P. (2007). “Assessment of TELEMAC system performances, a hydrodynamic case study of Anglet, France.” Coastal Engineering, Vol. 54, No. 4, pp 345–356.
Galland, J. C.; Goutal, N.; Hervouet, J. M. (1991), “TELEMAC: A New Numerical Model for Solving Shallow Water Equations”, Advances in Water Resources AWREDI 14(3), pp138–148.
Van Rijn, L. C. (1984). “Sediment transport, part I: bed load transport.” Journal of Hydraulic Engineering, Vol. 110, No. 10, pp 1431–1456.
Van Rijn, L. C. (1993). Principles of Sediment Transport in Rivers, Estuaries and Coastal Seas, Aqua Publications.
Villaret, C., Hervouet, J. M., Kopmann, R., Merkel, U. and Davies, A. G. (2011). “Morphodynamic modelling using the Telemac finite-element system.” Computers & Geosciences, Vol 53, pp 105–113.
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Published In
World Environmental and Water Resources Congress 2018: Hydraulics and Waterways, Water Distribution Systems Analysis, and Smart Water
Pages: 263 - 271
Editor: Sri Kamojjala, Las Vegas Valley Water District
ISBN (Online): 978-0-7844-8142-4
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: May 31, 2018
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