TY - JOUR
T1 - Laboratory Investigation of the Effect of Sill Length in Flip Bucket Spillway on Scour at the Bottom of Downstream
TT - بررسی آزمایشگاهی اثر طول آستانه در پرتابکنندههای مثلثی روی آبشستگی در پاییندست
JF - JSTNAR
JO - JSTNAR
VL - 28
IS - 1
UR - http://jstnar.iut.ac.ir/article-1-4381-en.html
Y1 - 2024
SP - 81
EP - 91
KW - Flip bucket spillway
KW - Scour depth
KW - River
KW - Sill length
N2 - The use of structures has economic and safety advantages compared to other energy-consuming structures. In this research, to investigate the effect of the length of the sill of the flip bucket spillway on the scour downstream, experiments were conducted in a rectangular laboratory flume made of Plexiglas. The scouring downstream of the flip bucket spillway was investigated using a flip bucket spillway with four relative sill lengths and four threshold angles at four current intensities in the channel in this research. The results of this research showed that by the increase in the length of the sill in the flip bucket spillway, the energy consumption in the spillway increased and the scour depth downstream decreased. Also, increasing the relative length of the sill by 70% at the sill angle of 45 degrees, the scouring depth is reduced by about 88%. Also, a relationship was presented to determine the maximum depth of relative scour, and the correlation coefficient of the results obtained from this equation with the laboratory results is about 0.92.
M3 10.47176/jwss.28.1.56520
ER -