%0 Journal Article %T Control of Hydrauli Jump through Sill in a Trapezoidal Channel %J Iranian Journal of Soil and Water Research %I University of Tehran %Z 2008-479X %A Khorshidi, Majid %A Omid, Mohammad Hosein %A Hoorfar, Abdolhosein %D 2010 %\ 02/20/2010 %V 39 %N 1 %P - %! Control of Hydrauli Jump through Sill in a Trapezoidal Channel %K Controlled jump %K Hydraulic jump %K Sill effect %K Thin crested-sill %K Trapezoidal stilling basin %R %X The control of hydraulic jump through thin-crested sills in a trapezoidal channel was studied theoretically as well as experimentally. The experiments were conducted in a specially designed stilling basin for 1:1 side slope. The results show that for a given side slope, end sill increases the stability of the jump within the stilling basin. It also causes a 13-15 percent reduction in the length of jump and negligible changes of the sequent depth as compared with the jumps occurring in a trapezoidal section with no sill. Finally, a relationship has been proposed for the design of the height and for the location of the sill to control the jump for a wide range of conditions. %U https://ijswr.ut.ac.ir/article_19930_5670ab512d7e19105fd89086bab99406.pdf