000259178 001__ 259178
000259178 005__ 20190701170229.0
000259178 02470 $$2isi$$a000438693900007
000259178 0247_ $$2doi$$a10.1061/(ASCE)HY.1943-7900.0001508
000259178 037__ $$aARTICLE
000259178 245__ $$aInfluence of Operational Timing on the Efficiency of Venting Turbidity Currents
000259178 269__ $$a2018
000259178 260__ $$c2018
000259178 336__ $$aJournal Articles
000259178 500__ $$a[1275]
000259178 520__ $$aReservoir sedimentation is gaining growing attention as dams are aging, due to economic and environmental consequences. Venting of turbidity currents is one of many sediment management techniques, highly recommended when water is in shortage. The venting operation is experimentally investigated using two reservoir bed slopes. The main research questions concern the opening timing of bottom outlets and the duration of venting. The timings tested are relative to the arrival of the current at the outlet. The results showed that in-time venting, synchronized with the arrival of the turbidity current at the outlet, is more efficient than early or late venting. It is recommended to start opening the gates when the turbidity current is around 300 m upstream of the outlet, so that the evacuation is synchronized with the arrival of the current at the dam. Additionally, venting should not be stopped immediately after the end of the turbidity current flow but should instead last for a certain time in order to evacuate the muddy lake depending on the outflow discharge.
000259178 6531_ $$aReservoir sedimentation; Bottom outlets; Intakes; Management; Turbidity current; Venting; Timing; Duration
000259178 700__ $$aChamoun, S
000259178 700__ $$aDe Cesare, G
000259178 700__ $$aSchleiss, AJ
000259178 773__ $$k9$$j144$$tJournal of Hydraulic Engineering
000259178 8560_ $$fseverine.sudre@epfl.ch
000259178 8564_ $$uhttps://infoscience.epfl.ch/record/259178/files/2018-1275%20Chamoun_DeCesare_Schleiss_Influence%20of%20Operational%20Timing%20on%20the%20Efficiency%20of%20Venting%20Turbidity%20Currents.pdf$$zFinal$$s2540254
000259178 909C0 $$xU10263$$0252079$$pLCH
000259178 909C0 $$0255473$$mseverine.sudre@epfl.ch$$mgiovanni.decesare@epfl.ch$$pPL-LCH$$xU10263$$zPasquier, Simon
000259178 909CO $$pENAC$$particle$$ooai:infoscience.epfl.ch:259178
000259178 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000259178 980__ $$aARTICLE