TY - GEN
T1 - Erosion on irregular slope surface
T2 - 13th International Symposium on River Sedimentation, ISRS 2016
AU - An, Y.
AU - Liu, Q. Q.
N1 - Publisher Copyright:
© 2017 Taylor & Francis Group, London.
PY - 2017
Y1 - 2017
N2 - Soil erosion by overland flowon hillslopes is one of the most crucial fundamental sediment yield processes. Generally, Saint-Venant equation based overland flow model is widely used to model this special flow, and in turn, the sheet erosion. However, it becomes more and more clear that the overland flow, which generally involves irregular micro landform, could behave different characteristics from river flow in which classical depth-averaged model suits well. The key issue is that the characteristic length of the irregular micro landform is considerable large comparing with the overland flow depth, which leads to nonuniform velocity profile in the depth direction. Thus, this paper employed full Navier-Stokes equation to study the overland flow on partially inundated irregular micro-relief and discuss the self-enhanced sheet erosion processes.
AB - Soil erosion by overland flowon hillslopes is one of the most crucial fundamental sediment yield processes. Generally, Saint-Venant equation based overland flow model is widely used to model this special flow, and in turn, the sheet erosion. However, it becomes more and more clear that the overland flow, which generally involves irregular micro landform, could behave different characteristics from river flow in which classical depth-averaged model suits well. The key issue is that the characteristic length of the irregular micro landform is considerable large comparing with the overland flow depth, which leads to nonuniform velocity profile in the depth direction. Thus, this paper employed full Navier-Stokes equation to study the overland flow on partially inundated irregular micro-relief and discuss the self-enhanced sheet erosion processes.
UR - http://www.scopus.com/inward/record.url?scp=85016589515&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85016589515
SN - 9781138029453
T3 - River Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016
SP - 21
BT - River Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016
A2 - Wieprecht, Silke
A2 - Haun, Stefan
A2 - Weber, Karolin
A2 - Noack, Markus
A2 - Terheiden, Kristina
PB - CRC Press/Balkema
Y2 - 19 September 2016 through 22 September 2016
ER -