Results 1 to 10 of about 19,254 (188)

Fully nonlinear simple internal waves over subcritical slopes in continuously stratified fluids: Theoretical development [PDF]

open access: yesPhysics of Fluids, 2019
The dynamics of fully nonlinear internal waves in continuously stratified fluids is investigated using a new simple-wave (or Riemann-wave) theory with 2nd-order topographic effects. Unlike previous fully nonlinear internal-wave theories, the proposed theory is applicable to large water-depth change over a long distance, provided that the local bottom ...
openaire   +1 more source

Tidally Driven Mixing “Hot Spot” at the Entrance of the Japan/East Sea

open access: yesGeophysical Research Letters, 2022
Mixing at the southwestern boundary of the Ulleung Basin (UB) in the Japan/East Sea was examined using combined ship‐based, moored, and quasi‐autonomous observations. These observations revealed strong tidal currents, high‐frequency internal wave packets,
Hemantha W. Wijesekera   +9 more
doaj   +1 more source

VEGETATION COVER EFFECTS ON SEDIMENT CONCENTRATION AND OVERLAND FLOW UNDER ARTIFICIAL RAINFALL INTENSITY

open access: yesZbornik Radova: Geografski institut "Jovan Cvijić", 2021
Soil erosion depends on a number of factors including rainfall intensity, density of plant cover, and area cover. The objective of this study is to investigate the impact of these factors on flow velocity, overland flow regimes, sediment concentration ...
Mounia Boussaadi, Liatim Mouzai
doaj   +1 more source

Hydraulic Jump in Circular Open Channels with Mild Slope [PDF]

open access: yesJournal of Engineering Research - Egypt, 2019
A hydraulic jump is a well-known transitionalphenomenon from supercritical to subcritical flows withundulations of water-surface. In this transition, the water flowhas a high-velocity, water surface rises abruptly, surface rollersare formed, intense ...
Mona Rashed, Tamer Gado, Ibrahim Rashwan
doaj   +1 more source

The Influence of Confining Topography Orientation on Experimental Turbidity Currents and Geological Implications

open access: yesFrontiers in Earth Science, 2021
Turbidity currents distribute sediment across the seafloor, forming important archives of tectonic and climatic change on the Earth’s surface. Turbidity current deposition is affected by seafloor topography, therefore understanding the interaction of ...
Euan L. Soutter   +7 more
doaj   +1 more source

Submarine Channel Mouth Settings: Processes, Geomorphology, and Deposits

open access: yesFrontiers in Earth Science, 2022
Observations from the modern seafloor that suggest turbidity currents tend to erode as they lose channel-levee confinement, rather than decelerating and depositing their sediment load, has driven investigations into sediment gravity flow behaviour at the
David M. Hodgson   +2 more
doaj   +1 more source

Modern vision for critical flow in an egg-shaped section

open access: yesWater Science and Technology, 2021
The critical regime plays a primordial role in the study of gradually varying flows by classifying flow regimes and slopes. Through this work, a new approach is proposed to analyze critical flow regime in an egg-shaped channel.
Hachemi Rachedi Lamia   +2 more
doaj   +1 more source

Flow Measurement in Steep Channels Using Large Scale Particle Image Velocimetry (LSPIV) [PDF]

open access: yesعلوم و مهندسی آبیاری, 2022
Measuring flow discharge in rivers and open channels has always been one of the most important concerns of water sciences experts. The most common flow measurement method in open channels is velocity- area approach.
Farhad Akbarpour   +2 more
doaj   +1 more source

Different initial density turbidite sediments with coarse grain injection and their corresponding flow pattern: Additional insights from numerical simulation in a study case of South China Sea

open access: yesPetroleum Research, 2019
The work presents the sedimentology and depositional results of the turbidity flow from Miocene to Pliocene along the North Slope of South China Sea (SCS).
Chao Fu   +4 more
doaj   +1 more source

The Free Overfall in Circular Sections with Different Flat Base in Supercritical and Subcritical Flow Regimes

open access: yesمجله آب و خاک, 2017
Introduction: A free overfall offers a simple device for flow discharge measuring by a single measurement of depth at the end of the channel yb which is known as the end depth or brink depth.
A.R. Vatankhah, S. Kiani, S. Riahi
doaj   +1 more source

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