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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 3 - WATER ENGINEERING AND CIVILIZATION : Experimental Result of Flow Energy Dissipation on Smooth and Stepped Spillway with and no-Piers
Experimental Result of Flow Energy Dissipation on Smooth and Stepped Spillway with and no-Piers
Author : Ciro Menéndez, Juan Carlos Guevara and Diana Molina
The present work is related with the experimental results obtained on an ogee-crest spillway with smooth and stepped bottom, in order to evaluate the energy dissipation for a discharge range between 20 and 180 l\s. For testing, two classical WES- Creager spillway of 1-m width, 0.57-m high were built. Spillway-1 had a smooth profile and spillway-2 a stepped profile. Spillway-1 and 2 were tested with and no- piers. Besides, flaring gate piers with b\B=0.5 ratio was tested for spillway-1 as well. The results showed that for spillway-1 with no-pier, the energy dissipated decreased from 42.9% to 22% and with piers from 71% to 16%, and from 78% to 24% for flaring gate piers. For spillway-2 with no- piers the energy dissipated decreased from 94.7% to 68.7% and with piers from 94.4% to 72.5%. Therefore the highest rates of flow energy dissipation were obtained for spillway-2 with stepped bottom with and no-piers.
File Size : 1,014,855 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 3 - WATER ENGINEERING AND CIVILIZATION
Date Published : 18/07/2016
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