TY - JOUR
T1 - Analytic stage-discharge formulae for flow in straight prismatic open compound channels
AU - Liao, Huasheng
AU - Knight, Donald
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Three analytic stage-discharge formulas, suitable for hand calculation, have been derived for prismatic open channels. The three types of prismatic geometry investigated are: simple rectangular, symmetric, and asymmetric rectangular compound channels. The formulas include three key parameters that govern the local friction factor, eddy viscosity, and secondary flow. The discharge results and the corresponding analytic depth-averaged velocity and bed shear stress distributions show good agreement with the experimental data, even when constant parameter values are assumed. The influence of these three parameters on the stage-discharge relationships is explored.
AB - Three analytic stage-discharge formulas, suitable for hand calculation, have been derived for prismatic open channels. The three types of prismatic geometry investigated are: simple rectangular, symmetric, and asymmetric rectangular compound channels. The formulas include three key parameters that govern the local friction factor, eddy viscosity, and secondary flow. The discharge results and the corresponding analytic depth-averaged velocity and bed shear stress distributions show good agreement with the experimental data, even when constant parameter values are assumed. The influence of these three parameters on the stage-discharge relationships is explored.
U2 - 10.1061/(ASCE)0733-9429(2007)133:10(1111)
DO - 10.1061/(ASCE)0733-9429(2007)133:10(1111)
M3 - Article
VL - 133
SP - 39
EP - 47
JO - Journal of Hydraulic Engineering
JF - Journal of Hydraulic Engineering
IS - 10
ER -