چکیده مقاله
Sluice gates are widely applied in regulating and distributing the water flow inirrigation erodible channels Hence their downstream hydraulic conditions maycause a critical flow, which could be generated a hydraulic jump In this research,the formation of the submerged hydraulic jump and the characteristics of theflow downstream of the sluice gate in the channel with the sand bed areinvestigated in the laboratory For this purpose, tests were performed on a 30 cmwide sluice gate with three gate opening gates b0= 1 5, 2, and 2 5 cm forFr=1 47 to 4 82 A rigid apron with a length of 1 5 meters is used to stabilize thebed, where the jump is formed The mean velocity distributions U/Um with y/y1were investigated at three longitudinal positions including Pa: 0 5 m after thegate opening, Pb: the beginning of the sedimentary bed, and Pc: the end of it Theresults show that the mean velocity at the end of the sedimentary bed is onaverage about 18% lower than at the beginning of it Also, it was indicated thatthe Froude number and the tailwater depth are important parameters in designingthe sluice gate of the erodible irrigation channel
کلیدواژهها
نویسندگان
Ali Mahdian Khalili
Ph D Candidate, Faculty of Civil Engineering, Babol Noshirvani University of Technology, Iran,Mazandaran, Babol
Mehdi Hamidi
Associate Professor, Faculty of Civil Engineering, Babol Noshirvani University of Technology, Iran,Mazandaran, Babol
شیوه ارجاع
Mahdian Khalili, Ali and Hamidi, Mehdi,1402,Experimental Investigation of Submerged Hydraulic JumpDownstream of Sluice Gate in Erodible Channel,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران