Heng09_SoilErosionModel_Postprint.pdf (325.11 kB)
Modeling overland flow and soil erosion on nonuniform hillslopes: a finite volume scheme.
journal contribution
posted on 2009-07-01, 12:45 authored by B.C. Peter Heng, Graham SanderGraham Sander, Cecil F. ScottThis paper presents a finite volume scheme for coupling the St. Venant equations with the multi-
particle size class Hairsine-Rose soil erosion model. A well-balanced MUSCL-Hancock scheme is
proposed to minimize spurious waves in the solution arising from an imbalance between the flux
gradient and the source terms in the momentum equation. Additional criteria for numerical stability
when dealing with very shallow flows and wet-dry fronts are highlighted. Numerical tests show that
the scheme performs well in terms of accuracy and robustness for both the water and sediment
transport equations. The proposed scheme facilitates the application of the Hairsine-Rose model to
complex scenarios of soil erosion with concurrent interacting erosion processes over a non-uniform
topography.
History
School
- Architecture, Building and Civil Engineering
Citation
HENG, B.C.P., SANDER, G.C. and SCOTT, C.F., 2009. Modeling overland flow and soil erosion on nonuniform hillslopes: a finite volume scheme. Water Resources Research, 45, W05423Publisher
© American Geophysical Union (AGU)Version
- AM (Accepted Manuscript)
Publication date
2009Notes
This article was published in the journal, Water Resources Research [© American Geophysical Union (AGU)] and the definitive version is available at: http://www.agu.org/pubs/crossref/2009/2008WR007502.shtmlISSN
0043-1397Language
- en