TY - JOUR
T1 - SPH simulation of free overfall in open channels with even and uneven bottom
AU - Hou, Q.
AU - Zhang, L.X.
AU - Tijsseling, A.S.
AU - Kruisbrink, A.C.H.
PY - 2014
Y1 - 2014
N2 - The free overfall can be used as a simple and accurate device for flow measurement in open channels. In the past, the solution to this problem was found mainly through simplified theoretical expressions or on the basis of experimental data. In this paper, using the meshless smoothed particle hydrodynamics (SPH) method, the free overfall in open channels with even and uneven bottom is investigated. For the even bottom case, subcritical, critical and supercritical flows are simulated. For the uneven bottom case, supercritical flows with different Froude numbers are considered. The free surface profiles are predicted and compared with theoretical and experimental solutions in literature and good agreements are obtained.
AB - The free overfall can be used as a simple and accurate device for flow measurement in open channels. In the past, the solution to this problem was found mainly through simplified theoretical expressions or on the basis of experimental data. In this paper, using the meshless smoothed particle hydrodynamics (SPH) method, the free overfall in open channels with even and uneven bottom is investigated. For the even bottom case, subcritical, critical and supercritical flows are simulated. For the uneven bottom case, supercritical flows with different Froude numbers are considered. The free surface profiles are predicted and compared with theoretical and experimental solutions in literature and good agreements are obtained.
U2 - 10.4028/www.scientific.net/AMM.444-445.889
DO - 10.4028/www.scientific.net/AMM.444-445.889
M3 - Article
SN - 1660-9336
VL - 444-445
SP - 889
EP - 893
JO - Applied Mechanics and Materials
JF - Applied Mechanics and Materials
ER -