Results 11 to 20 of about 154 (122)
Flood risk in past and future: A case study for the Pawtuxet River's record-breaking March 2010 flood event. [PDF]
J Flood Risk Manag, 2020 Abstract In March 2010, a sequence of three major rainfall events in New England (United States) led to a record‐breaking flooding event in the Pawtuxet River Watershed with a peak flow discharge of about 500‐year return period. After development of hydrological and hydraulic models, a number of factors that played important roles in the impact of this
Kouhi S +5 more
europepmc +2 more sources
Influence of Turbulence Models on Simulated Flow Characteristics Over Ogee Spillways
Journal of Studies in Civil EngineeringThe study investigated the simulation of flow characteristics over an Ogee-type spillway surface. This research utilizes a Flow-3D numerical model that builds upon the findings from prior experimental data and numerical models simulated by Ansys with a ...
Mangur Rasul Khidhir +4 more
doaj +2 more sources
Flow over Ogee Spillway: Physical and Numerical Model Case Study
Journal of Hydraulic Engineering, 2001 A study was completed to compare flow parameters over a standard ogee-crested spillway using a physical model, numerical model, and existing literature. The physical model was constructed of Plexiglas and placed in a test flume. Pressure taps were installed along the entire length of the spillway.
Michael C Johnson
exaly +3 more sources
Numerical Investigation of the Flow Field on the Ogee Spillway under the Influence of the Crest Shape and Slope of the Upstream Face of the Spillway [PDF]
پژوهشهای زیرساختهای عمرانی, 2023 In this study, the ogee spillway flow pattern under the influence of the spillway curve shape and upstream slope changes was evaluated using Flow-3D numerical simulator software.
Mehdi Lak, Mehdi Komasi
doaj +1 more source
A Numerical Simulations on the Flow over Ogee Spillway with Pier
Journal of Korea Water Resources Association, 2004 Il-Won Seo
exaly +3 more sources
Discharge coefficients for ogee spillways
Water Supply, 2022 Abstract Discharge over an ogee weir is related to the length of the weir, upstream total head above the weir crest and the discharge coefficient. The discharge coefficient is influenced by several factors; in this study, some parameters that influence discharge coefficients of ogee weirs are investigated. These factors include: the weir
Farzin Salmasi, John Abraham
openaire +2 more sources
Experimental Investigation of Energy Dissipation in Ogee Spillway Using New Distributions of Dissipation Blocks [PDF]
E3S Web of Conferences, 2023 Ogee spillway is the most important structure used to get rid of excess water during flood. Scouring phenomenon occurring in the downstream region due to high energy dissapation is an envitable.
Al-Fatlawi Mohammed +1 more
doaj +1 more source
River, Volume 2, Issue 4, Page 433-444, November 2023., 2023 Aiming at the aeration problem of falling water in overflow weir of siphon well, this study calculated and simulated three kinds of antibubble engineering cases. The hydraulic characteristics of the hydraulic structure section and the aeration concentration distribution of the horizontal drainage section were studied. The results will provide a certain
Da Liu +4 more
wiley +1 more source
Investigation of turbulent flows using spillway models aiming to aid downstream migration of fish
River Research and Applications, Volume 39, Issue 6, Page 1110-1121, July 2023., 2023 Abstract Dams and other flow control structures constitute obstacles to upstream and downstream aquatic habitats, reducing life‐cycle success and even eliminating diadromous and potamodromous fish species from river basins. Providing effective passage past hydroelectric dams is critical for restoring habitat connectivity and sustaining populations of ...
A. Shirinzad +4 more
wiley +1 more source
Journal of Flood Risk Management, Volume 14, Issue 1, March 2021., 2021 Abstract This study presents a novel stochastic simulation–optimization approach for optimum designing of flood control dam through incorporation of various sources of uncertainties. The optimization problem is formulated based on two objective functions, namely, annual cost of dam implementation and dam overtopping probability, as those are the two ...
Ahmad Sharafati +2 more
wiley +1 more source