Abstract
Study of hydraulic
parameters effects on the flow pattern in lateral intakes is important to be
identified from different aspects. For instance, it enables us to assess
sediment transport to intake easier. The transverse pressure gradient near the
intake induces regions of mean-velocity gradient, depth-varying surface of flow
division and separation zone in the vicinity of lateral intakes. Therefore, it
affects on the diversion discharge. In order to exclude or minimize sediment
inflow to the lateral intake, a lot of research has been done. This is limited
to the study of straight channels and meanders with a large radius of
curvature. However, in this paper, experiments were carried out in an
180ْ U-shaped bend flume with rectangular cross-section. Experiments were
designed to understand variation of hydraulic parameters with different
diversion angles, intake location as well as Froude Number (Fr). During the experiments, it was
found that Fr, intake location and diversion angle could be the effective
parameters on the diversion rate.
Keywords: Lateral Intake,