Results 11 to 20 of about 55,131 (262)
Agriculture, 2022 To overcome the problem of poor uniformity of solid-fertilizer-dissolving devices due to lag of fertilizer dissolution, a closed-loop control system based on fuzzy proportional-integral-derivative (PID) was designed and tested. A fertilizer concentration
Xiuhua Song +5 more
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AERODYNAMIC ANALYSIS OF WIND TURBINE ROTOR BLADES
TASK Quarterly, 2015 One of the main achievements of the PLGrid Plus project is the implementation of new tools and services designed for the numerical prediction of the aerodynamic performance of wind energy turbines.
JAVIER MARTINEZ +3 more
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Research and Development of Rotary Sprinkler Hydraulic Characteristics of the External Flow Field
MATEC Web of Conferences, 2015 Sprinkler key equipment is the irrigation system in sprinkler hydraulic characteristics of the external flow field. It is also an important indicator in performance evaluation of the sprinkler.
Liu Junping +4 more
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Sediment wear of turbine guide vane before and after tungsten carbide treatment
Advances in Mechanical Engineering, 2022 This paper describes three-dimensional unsteady simulations of sand–water flow within a turbine passage. Sand abrasion of a movable guide vane made from ZG06Cr13Ni4Mo is tested before and after tungsten carbide spray-coating.
Xiaoyi Zhao +6 more
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EPJ Web of Conferences, 2014 The most common method for simulating cavitating flows is using the governing flow equations in a form with a variable density and treats both phases as incompressible in combination with a transport equation for the vapour volume fraction. This approach
Deimel Christian +2 more
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Advances in Mechanical Engineering, 2022 Magnetic drive centrifugal pumps have compact structure and lower efficiency than ordinary centrifugal pumps. The surrogate-based optimization technique was applied to improve the performance of a high-speed magnetic drive pump with the help of numerical
Zhenfa Xu +5 more
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Agritech, 2019 In this article, the results of key lime fruit (Citrus aurantifolia) wastes and cabbage (Brassica L.) wastes anaerobic digestion are presented. Anaerobic digestion of the wastes was performed in batch process, neutral pH (key-lime 7.47 and cabbage 7.67 ...
Gaweł Sołowski +3 more
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Experimental Study on Unsteady Cavitating Flow and Its Instability in Liquid Rocket Engine Inducer
Journal of Marine Science and Engineering, 2022 To study instability in the unsteady cavitating flow in a liquid rocket engine inducer, visualization experiments of non-cavitating and cavitating flows inside a model inducer were carried out at different flow conditions. Visual experiments were carried
Hao Wang +6 more
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Journal of Marine Science and Engineering, 2021 Inducer is often used to improve the cavitation performance of pump. In order to study the cavitation characteristics of inducer under low flow condition of high-speed pump, high-speed photography technology was employed in this paper to carry out visual
Zhenfa Xu +5 more
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Barely visible impact damage identification in a 3D core sandwich structure
Computer Assisted Methods in Engineering and Science, 2018 3D core sandwich structure (3DCSS) is a popular lightweight construction material in the automotive, aerospace and marine industries. However, barely visible low-speed impact-damage (BVLID) may occur in the 3DCSS due to foreign-object-impact that can ...
Shirsendu Sikdar +3 more
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