Results 81 to 90 of about 363 (168)

Numerical study of transient flow dynamics in a prismatic channel with a bed depression

Journal of Hydrology and Hydromechanics
Catastrophic floods triggered by a dam-break pose significant hazards to infrastructure due to transient flows and concentrated structural loads. These hazards are intensified where in-channel structures or variable topography redirect momentum and ...
Oodi Shahin, Khoshkonesh Alireza, Okhravi Saeid, Gohari Saeed   +3 more
doaj   +1 more source

Evaluación de la eficiencia en disipación de energía en estructuras hidráulicas construidas con gaviones y material reciclado (neumático usado) mediante modelamiento físico a escala reducida

Revista UIS Ingenierías, 2020
Flujos con exceso de energía cinética producen alta velocidad, sobrepresiones y procesos erosivos, en este sentido los disipadores de energía son estructuras hidráulicas que minimizan este efecto. Dichas obras suelen construirse en concreto convencional,
Luis Efrén Ayala-Rojas, Alejandro Franco-Rojas, Edgar Alexander Padilla-González   +2 more
doaj  

Microstructure, Characterization and Mechanical Properties of Coal and Coal-like Materials. [PDF]

Materials (Basel), 2023
Liu X, Tan Y, Wu Y, Li X.
europepmc   +1 more source

Effects of flow splitters on local scour downstream of type-A trapezoidal piano key weir

Applied Water Science
This study investigates the effectiveness of flow splitters in reducing scour downstream of trapezoidal Piano Key Weirs through a comprehensive experimental study. Three distinct geometries of flow splitters—square, rectangular, and circular—are examined
Sara Kazerooni, Chonoor Abdi Chooplou, Masoud Ghodsian   +2 more
doaj   +1 more source

The effect of gabion steps on the hydraulic jump characteristics downstream of stepped spillways

Water Science
Gabion steps on stepped spillways can be a suitable alternative to solid impermeable steps due to their economic advantages, ease of implementation, stability through water pressure reduction, and energy dissipation.
Rasoul Daneshfaraz, Hojjat Sadeghi, Amir Ghaderi, John Patrick Abraham   +3 more
doaj   +1 more source

Physical and Numerical Modeling of the Nappe Flow in the Stepped Spillways

Journal of Applied Sciences, 2008
H. Musavi-Jah, M. Bina, F. Salmasi
openaire   +1 more source

The gravity flow dynamics of submarine fan sedimentation in the Magura Basin of the Western Carpathians (Magura Nappe, Slovakia)

Geologica Carpathica, 2010
The gravity flow dynamics of submarine fan sedimentation in the Magura Basin of the Western Carpathians (Magura Nappe, Slovakia)This article deals with the dynamics of the deep-water gravity flows sedimentation within the Magura Formation. This investigation is based on analysis of the Magura sandstone sedimentary structures studied on the outcrops ...
openaire   +1 more source

Oxygen transfer variation along steps of a prototype-scale stepped spillway in nappe flow regime

Based on long-term data, oxygen levels have decreased in temperate natural lakes because of thermal stratification and eutrophication. Similar conditions can be observed in newly filled reservoirs, with consequences on the environment. Air-water flows taking place on hydraulic structures are helpful to increase the dissolved oxygen concentration ...
Jamali Rovesht, Tohid, Bung, Daniel B., Archambeau, Pierre, Pirotton, Michel, Dewals, Benjamin, Erpicum, Sebastien   +5 more
openaire   +2 more sources

Modelling Turbulent Kinetic Energy and Streamlines Over Gabion Stepped Weirs

Civil and Environmental Engineering
Gabion weirs are environmentally friendly hydraulic structures that regulate floods and reduce bottom erosion by controlling flow velocity. This study aims to simulate the flow over gabion stepped weirs numerically.
Al-Majed Farah Hamid, Alabas Mohammed A Almajeed A   +1 more
doaj   +1 more source

Extrusion of subducted crust explains the emplacement of far-travelled ophiolites. [PDF]

Nat Commun, 2021
Porkoláb K, Duretz T, Yamato P, Auzemery A, Willingshofer E.   +4 more
europepmc   +1 more source