000168553 001__ 168553
000168553 005__ 20190316235203.0
000168553 020__ $$a978-0-85825-868-6
000168553 037__ $$aCONF
000168553 245__ $$aEffect of pre-aerated approach flow on delector-generated jets
000168553 269__ $$a2011
000168553 260__ $$c2011
000168553 336__ $$aConference Papers
000168553 500__ $$a[789]
000168553 520__ $$aFlip buckets are terminal spillway elements, generating free jets for energy dissipation. Deflectors are an alternative to flip buckets with constructional ease yet of similar hydraulic features. A first experimental study published at the 33rd IAHR Congress, Vancouver, investigated deflectorgenerated jets in terms of their air concentration characteristics. For jet impact onto a movable bed, the scour potential reduces as the jet air content increases. It was demonstrated that the jet air concentration development is a function of its relative black-water core length, depending on the approach flow parameters and the deflector geometry. Jet-generating structures are located at the end of spillways, where high-speed flow with considerable air transport prevails, affecting the jet parameters, such that additional experiments were conducted involving pre-aerated approach flow. The effect of pre-aeration on the air concentration development of deflector-generated jets is discussed and compared with un-aerated approach flow.
000168553 6531_ $$aAir concentration, Deflector, Jet, Pre-aeration, Spillway
000168553 700__ $$0244418$$g202221$$aPfister, Michael
000168553 700__ $$aLucas, J.
000168553 700__ $$aHager, W.
000168553 7112_ $$dJune 26 - July 1st, 2011$$cBrisbane, Australia$$a34th IAHR World Congress
000168553 773__ $$jCD-ROM$$tProceedings of the 34th IAHR World Congress$$q2554-2561
000168553 8564_ $$uhttps://infoscience.epfl.ch/record/168553/files/2011-789_Pfister_lucas_Hager_effect_of_pre_aerated_approach_flow.pdf$$zn/a$$s1256677$$yn/a
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000168553 917Z8 $$x206365
000168553 917Z8 $$x206365
000168553 937__ $$aEPFL-CONF-168553
000168553 973__ $$rNON-REVIEWED$$sPUBLISHED$$aEPFL
000168553 980__ $$aCONF