Results 11 to 20 of about 385,138 (310)
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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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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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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Agronomy, 2022 As a key component of a drip irrigation system, the performance of the drip irrigation emitters is mainly determined by the flow channel structures and structural parameters.
Yanfei Li +7 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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Engineering Applications of Computational Fluid Mechanics, 2022 In the present study, hydraulic and thermal performances of nano-enhanced drilling muds have been studied across the complex geometry of a rotating polycrystalline diamond compact (PDC) drill bit using computational fluid dynamics techniques. Toward this
Leila Esfahanizadeh +2 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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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 +4 more
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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 +2 more
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Influence of blade number on performance of multistage hydraulic turbine in turbine mode
Energy Science & Engineering, 2022 Compared with the traditional reverse multistage pump as hydraulic turbine, hydraulic turbine in turbine mode (T‐type turbine) with low specific speed has higher single‐stage energy head, which can effectively reduce stages and increase the stability ...
Lihong Zhang +4 more
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