EXPERIMENTAL INVESTIGATION OF FLOW AND ENERGY DISSIPATION IN STEPPED SPILLWAYS
Journal Title: Larhyss Journal - Year 2006, Vol 5, Issue 5
Abstract
The experimental results presented have permitted to describe flow configurations on the stepped spillway. The same results indicate that: i. stepped spillway dissipates the flow energy better than those of smooth profile. ii. The energy dissipation is inversely proportional to the flow discharge which is equal to 30 l/s.m for our case. iii. For the exploration data of our experiment, the nappe flow dissipates better than that of skimming regime. iv. Also, our results indicate that the energy dissipation, in the case of a nappe flow, depends on the number of spillway steps and on the discharge. v. In the case of skimming flow, the energy dissipation depends on the spillway slope and the discharge. vi. The friction factor has a strong influence on the energy dissipation whose mean value is 0.24.
Authors and Affiliations
A. HAZZAB| Laboratoire de ModÅlisation et MÅthodes de Calcul Centre Universitaire Dr. MOULAY Tahar de SaÇda, BP 138 Ennasr SaÇda 20002, C. CHAFI| Laboratoire de ModÅlisation et MÅthodes de Calcul Centre Universitaire Dr. MOULAY Tahar de SaÇda, BP 138 Ennasr SaÇda 20002
Keywords
Related Articles
- EP ID EP14882
- DOI -
- Views 399
- Downloads 17
CHARACTERIZATION OF TREATED WASTEWATER REUSED FOR AGRICULTURE IN THE VEGETABLE FARMING AREA OF SEBKHA IN NOUAKCHOTT, MAURITANIA
The study assessed the microbiological and physicochemical parameters of wastewater collected between October 2011 and September 2012 from the effluent of the WWTP in vegetable farming area of Sebkha in Nouakchott. Th...
CARACTERISATION STATISTIQUE ET HYDROCHIMIQUE DE L’AQUIFERE SUPERFICIEL DE TADJNANET-CHELGHOUM LAID (NORD-EST ALGERIEN)
The plain of Tadjnanet Chelghoum Laid with agricultural vocation, is located in North East of Algeria where different water needs are covered by the shallow aquifer waters of the Mio-Pliocene-Quaternary. The overexploi...
TURBIDITE ET MATIERES EN SUSPENSION DANS L’EAU : APPLICATION A L’EVALUATION DES METAUX CONTENUS DANS L’EAU DE LA RIVE DROITE DU FLEUVE SENEGAL
The main objective of this study is the application of Principal Component Analysis coupled with turbidity and suspended matters measurement of the metals (Fe, Pb, Cu, Mn, Zn) in the water of the right bank of the Sene...
SCENARIOS DES CHANGEMENTS CLIMATIQUES POUR LES PRECIPITATIONS ET LES TEMPERATURES EN AFRIQUE SUBSAHARIENNE TROPICALE HUMIDE : CAS DU BASSIN VERSANT DE DAVO, COTE D’IVOIRE
Like Sub-Saharan countries, the Ivory Coast is vulnerable to the effects of climate change. This study aims to assess the impacts of climate change on precipitation and temperatures for 2050 and 2080 horizons in the Da...
CONTRIBUTION A LA CARACTERISATION PHYSICOCHIMIQUE DES EAUX DU LAC RESERVOIR DU BARRAGE HASSAN II (PROVINCE DE MIDELT, MAROC)
The Hassan II dam included in the watershed Moulouya, is one of the largest Moroccan retaining dam with maximum storage capacity of 400 million cubic meters (Mm3). It controls a catchment area of 3300 km2 and ensures a...