Influence of Inlet Groove on Flow Characteristics in Stall Condition of Full-Tubular Pump
Frontiers in Energy Research, 2022 The full-tubular pump is a new type of pump with a narrow range of stable operation. In order to improve the internal flow characteristics of the full-tubular pump under small flow conditions and improve the safe and stable operating range of the pump ...
Lijian Shi +9 more
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Energy-efficient control of pump units based on neural-network parameter observer [PDF]
, 2020 An observer based on an artificial neural network was designed. The observer determines the pumping unit performance depending on the operating point. Determination is based on the measured technological coordinates of the system and the pressure of the ...
Burian, S. O. +4 more
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Water Science, 2023 Nonlinear weirs offer a relatively high discharge capacity under low water loads. Their efficiency, however, is decreased at high water loads due to the submergence of the weir outlet key. In the present study, sloping parapet walls with the heights of 2,
Marzieh Hamidinia +3 more
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Optimizing Flow Conduit and Test Analysis of Axial Flow Pump Device in Siyang Second Station
Guan'gai paishui xuebao, 2022 【Objective】 The purpose of this paper is to improve the hydraulic performance of the pump device in the reconstructed project of Siyang Second Station and clarify its hydraulic performance.
JI Qingwei +4 more
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Analysis of the Influence of the Channel Layout and Size on the Hydraulic Performance of Emitters
Agriculture, 2022 In this paper, a split-flow channel layout with one (group) inlet and two (group) outlets is adopted, based on computational fluid dynamics technology, and compared with the current commonly used channel with one (group) inlet and one (group) outlet ...
Peisen Du +3 more
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Research on Cavitation Performance of Bidirectional Integrated Pump Gate
Energies, 2023 A pump gate is a device that controls the flow of water. It can stop the flood when it comes, drain the ponding gathered in the city, and improve the water circulation of the city.
Huahuang Lai +4 more
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Stem hydraulic capacitance decreases with drought stress : implications for modelling tree hydraulics in the Mediterranean oak Quercus ilex [PDF]
, 2017 Hydraulic modelling is a primary tool to predict plant performance in future drier scenarios. However, as most tree models are validated under non-stress conditions they may fail when water becomes limiting.
Limousin, Jean Marc +4 more
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Selection and experimental evaluation of low-cost porous materials for regenerator applications in thermoacoustic engines [PDF]
, 2010 This paper aims at evaluating three selected low-cost porous materials from the point of view of their suitability as regenerator materials in the design of thermoacoustic travelling wave engines.
Abduljalil, Abdulrahman S. +2 more
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Optimizing Geometrical Parameters of the Flow Channel in the Root-irrigation Emitters
Guan'gai paishui xuebao, 2022 【Objective】 The study is to present a new root-zone irrigation emitter and investigate the influence of the geometrical parameter of its spiral-hedge flow channel on hydraulic performance of the emitter.
ZHANG Jun, LI Lin
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Guan'gai paishui xuebao, 2022 【Objective】 The performance of sprinkler irrigation systems depends on many design factors and in this paper, we study the effect of orifice shape and the impact-arm of the nozzle on spraying characteristics when the systems are operated under low ...
HUA Lin, LI Hong, JIANG Yue, QIN Longtan
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