Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/1888
Title: Numerical Model for Sediment Transport Over Nonplanar, Nonhomogeneous Surfaces
Authors: Tayfur, Gökmen
Singh, Vijay P.
Keywords: Sediment transport
Nonhomogeneous surfaces
Sedimentographs
Diffusion
Infiltration
Publisher: American Society of Civil Engineers (ASCE)
Source: Tayfur, G., and Singh, V. P. (2004). Numerical model for sediment transport over nonplanar, nonhomogeneous surfaces. Journal of Hydrologic Engineering, 9(1), 35-41. doi:10.1061/(ASCE)1084-0699(2004)9:1(35)
Abstract: Sediment transport on surfaces with spatially variable microtopography, roughness, and infiltration was investigated using the diffusion wave equation. An implicit finite-difference scheme together with multivariate Newton's method was employed to solve the equation numerically. The simulation results showed that microtopography and roughness were the dominant factors causing significant spatial variations in sediment concentration. If the spatially varying microtopography was replaced by an average constant slope, the result was an overestimation of the sediment load. On the other hand, when the spatially varying roughness was replaced by the average roughness and the spatially varying infiltration rate by the average infiltration rate, the sediment discharge was not significantly affected. The sedimentograph reached an equilibrium much sooner when a constant infiltration rate was substituted for the time-varying infiltration rate.
URI: http://doi.org/10.1061/(ASCE)1084-0699(2004)9:1(35)
http://hdl.handle.net/11147/1888
ISSN: 0733-9429
1084-0699
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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