Results 21 to 30 of about 380,717 (213)

Assimilating SAR-derived water level data into a hydraulic model: a case study [PDF]

, 2011
Satellite-based active microwave sensors not only provide synoptic overviews of flooded areas, but also offer an effective way to estimate spatially distributed river water levels.
De Keyser, Robain, De Lannoy, Gabriëlle, Giustarini, Laura, Hoffmann, L, Hostache, Renaud, Matgen, Patrick, Montanari, Mara, Pauwels, Valentijn, Pfister, L, Plaza Guingla, Douglas Antonio, Savenije, HHG   +10 more
core   +2 more sources

Modeling Design and Research of Three-Dimensional Blades of 54 mm Turbodrill

Shiyou jixie, 2023
For the hydraulic loss caused by the impact of liquid to the rotor blade attributed to different circumferential velocities of liquid in cylindrical layers of the turbine rotor with different radii,a three-dimensional blade turbine was established using ...
Zhang Yuhang, Zhang Qiang, Xin Yong'an, Duan Chenwei, Ji Changgui   +4 more
doaj  

Numerical Analysis of Internal Flow in a Slanted Axial-flow Pump

Guan'gai paishui xuebao, 2021
【Background and objective】 Slanted axial-flow pump has the advantages of small excavation depth, stable flow pattern and high efficiency. It has been widely used in large and medium-sized low head pumping stations.
HU Wenzhu, TONG Daobin, LI Zhongbin, WANG Rui, YANG Fan   +4 more
doaj   +1 more source

Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

Agriculture, 2023
A bulb tubular pump unit is a horizontal tubular pump unit composed of a water pump and bulb with an electric motor installed. Electric motors, transmission equipment, and bearings are usually placed in the bulb.
Hongyin Zhang, Jianlong Liu, Jinxin Wu, Weixuan Jiao, Li Cheng, Mingbin Yuan   +5 more
doaj   +1 more source

Experiment and Numerical Simulation on Hydraulic Loss and Flow Pattern of Low Hump Outlet Conduit with Different Inlet Water Rotation Speeds

Energies, 2022
The rotation speed of water at the inlet of the low hump outlet conduit has a great effect on its hydraulic performance. Therefore, the influence of different inlet water rotation speeds on hydraulic loss and flow pattern of low hump outlet conduit is ...
Lei Xu, Tao Jiang, Chuan Wang, Dongtao Ji, Wei Shi, Bo Xu, Weigang Lu   +6 more
doaj   +1 more source

Transform-based particle filtering for elliptic Bayesian inverse problems [PDF]

, 2019
We introduce optimal transport based resampling in adaptive SMC. We consider elliptic inverse problems of inferring hydraulic conductivity from pressure measurements.
Dubinkina, Svetlana, Iglesias, Marco, Ruchi, Sangeetika   +2 more
core   +4 more sources

The Long-Term Hydraulic Efficiency of Green Infrastructure under Sea Level: Performance of Raingardens, Swales and Permeable Pavement in New Orleans

Land, 2023
Greater New Orleans is surrounded by wetlands, the Mississippi River and two lakes. Excess rain can only be drained off with pumping systems or by evaporation due to the bowl-like shape of a large part of the city.
Floris Boogaard, Daan Rooze, Roelof Stuurman   +2 more
doaj   +1 more source

The Influence of Bulb Position on Hydraulic Performance of Submersible Tubular Pump Device

Journal of Marine Science and Engineering, 2021
In order to study the influence of the position of the bulb on the hydraulic performance of a submersible tubular pump device, based on a large-scale pumping station, two schemes—involving a front-mounted bulb and a rear-mounted bulb, respectively—were ...
Zhuangzhuang Sun, Jie Yu, Fangping Tang
doaj   +1 more source

Pressure-driven modelling of water distribution systems [PDF]

, 2002
This paper presents a novel method to model water distribution systems (WDS) with insufficient pressure. Methods for the prediction of the performance of a WDS with pressure deficiencies are reviewed.
Tahar, B., Tanyimboh, T., Templeman, A.
core   +2 more sources

Hydraulic Response and Overtopping Performance of Single-Layer Double Cube Unit Armored Mound Breakwater

Journal of Marine Science and Engineering, 2023
A newly developed friction-interlocking armor unit called the ‘Double cube’ (DC) was designed to improve the performance of a concrete armor unit used in river/marine structures against currents/waves actions.
Iman Safari, Dominique Mouazé, Soroush Aliasgary, Guillaume Carpentier, François Ropert   +4 more
doaj   +1 more source