Results 1 to 10 of about 468,655 (259)

Impact of backwater on water surface profile in curved channels

open access: yesWater Science and Engineering, 2023
Owing to extensive construction of dams, the impact of backwater on flow may lead to navigation or flood control issues in curved channels. To date, the impact of backwater on the water surface profile in curved channels remains unknown and requires ...
Rui-hua Nie   +5 more
doaj   +4 more sources

An experimental investigation of the impact of aquatic weeds trash racks on water surface profile in open channels

open access: yesWater Science, 2019
A considerable quantity of weeds is drafted with flow due to maintenance activities and moving vessels causing serious problem to hydraulic structures and hydropower plants along open channels. Aquatic weed trash screens are normally constructed upstream
Mohamed Salah Abd Elmoaty
doaj   +3 more sources

Method for calculating a water surface profile at the watershed scale with little observed data based on ASTER GDEM: a case study in the Naoli River, northeast China

open access: yesFrontiers in Environmental Engineering
The calculation of a river water surface profile is a very important problem in the field of hydraulic engineering. With the development of research on surface and groundwater coupled simulation, the river water surface profile has become an ...
Lin Tian   +6 more
doaj   +3 more sources

Computation of Water Surface Profile through the Gravel Dams in Series [PDF]

open access: yesWater Harvesting Research, 2023
This paper presents an in-depth study of water surface calculation of rockfill detention structures in series. Different flow characteristics in porous media were investigated, explaining the influence of velocity, hydraulic gradient and geometric media ...
Jafar Chabokpour
doaj   +1 more source

SPH Open Boundary Simulation of Free-Surface Flow Over Ogee-crested Spillway [PDF]

open access: yesTikrit Journal of Engineering Sciences, 2021
This study was conducted to compare water surface profiles with standard ogee-crested spillways. Different methods were used, such as (experimental models, numerical models, and design nomographs for the United States Army Corps of Engineers, USACE).
Rizgar Ahmed Karim   +1 more
doaj   +2 more sources

Water Surface Profile Dynamics and Underlying Mechanism of Transverse Channel in Pearl River Channel Networks: A Case Study of the Dongping Channel

open access: yesRedai dili, 2021
Since the 1980s, the Pearl River Delta has undergone rapid development on economic and social fronts. Owing to the impacts of large-scale and intensive human activities, the river discharge and sediment loads entering the Pearl River channel networks ...
Wang Bozhi   +5 more
doaj   +1 more source

Bacterioplankton Community Profiling of the Surface Waters of Kuwait

open access: yesFrontiers in Marine Science, 2022
The marine waters of Kuwait are highly dynamic and strongly influenced by extreme environmental conditions and high levels of anthropogenic activities. This study explored the bacterioplankton community composition and diversity in Kuwait Bay and at four offshore sites close to urbanized coastal areas during two seasons, autumn (October) and spring ...
Nasra Ismail, Awatef Almutairi
openaire   +2 more sources

Numerical Simulation Results of Hydraulic Jump in Different Conditions of Roughness, Adverse Slope, and Positive Step [PDF]

open access: yesعلوم آب و خاک, 2023
Hydraulic jump is used for dissipation of kinetic energy downstream of hydraulic structures such as spillways, chutes, and gates. In the present study, the experimental measurements and numerical simulation of the free hydraulic jump by applying Flow-3D ...
N. Pourabdollah   +2 more
doaj  

A METHOD OF EXTRACTING SHORELINE BASED ON SEMANTIC INFORMATION USING DUAL-LENGTH LiDAR DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Shoreline is a spatial varying separation between water and land. By utilizing dual-wavelength LiDAR point data together with semantic information that shoreline often appears beyond water surface profile and is observable on the beach, the paper ...
C. Yao, C. Yao, J. Wu, Z. Yuan
doaj   +1 more source

Movement characteristics of the inclined surface flow of the open channel on the nanoscale surface

open access: yesHeliyon, 2023
This study investigates the water flow characteristics on a solid surface with nanoscale compared to a normal solid surface. The experiment uses a high-speed video system and Fiber-optic Laser Doppler Velocimetry to measure the flow condition of the ...
Yen-Chang Chen, Han-Chung Yang
doaj   +1 more source

Home - About - Disclaimer - Privacy