Results 11 to 20 of about 1,603,019 (133)

Analysis of Cyclone Spinning Effect with Different Guide Vane Heights

open access: yesApplied Sciences
In order to explore the influence of change in the structural parameters ofguide vane cyclones on the cyclone spinning effect, this paper mainly used numerical simulations and physical experiments to analyze the energy of the hydrodynamic flow of ...
Song Wei   +3 more
doaj   +2 more sources

Analysis of flow and energy dissipation in pump turbine with small guide vane opening

open access: yesEngineering Applications of Computational Fluid Mechanics
In this study, a detailed flow state analysis of a reversible pump turbine (RPT) under small guide vane opening conditions was conducted using both numerical simulation and experimental methods on three analysis planes at 0.5 span. The entropy production
Jiahao Lu   +6 more
doaj   +2 more sources

Peg-tooth spacing and guide vane inclination of a Thai combine harvester affecting harvesting losses [PDF]

open access: yesEngineering and Applied Science Research, 2018
Peg-tooth spacing and guide vane inclination of Thai combine harvesters are important parameters affecting harvesting losses. The harvester owners often adjust the peg-tooth spacing and guide vane inclination before harvesting.
Somchai Chuan-Udom   +3 more
doaj   +2 more sources

OPTIMASI DESAIN MEKANISME LINKAGE GUIDE VANE UNTUK PENGATURAN ALIRAN MASUK AIR KE SUDU PADA TURBIN BANKI [PDF]

open access: yesJurnal Teknik Pertanian Lampung, 2020
Salah satu bagian penting dalam turbin banki adalah pengaturan guide vane, karena aliran masuk air ke sudu pada turbin tergantung dari pengaturan guide vane nya, baik pada debit rendah maupun normal.
Sirojuddin   +2 more
doaj   +3 more sources

Torsional Vibrations at Guide-Vane Shaft of Pump–Turbine Model [PDF]

open access: yesShock and Vibration, 1997
This article focuses on the problem of guide-vane vibrations of reversible pump–turbines, especially, in the pump mode. These vibrations are transmitted to the guide-vane shaft torque. The guide-vane vibrations are caused by the impeller exit flow, which
Andrej Predin
doaj   +3 more sources

Analysis on cause of erosion of guide vane of high‐head Francis turbine in sandy river

open access: yesEnergy Science & Engineering
The Kizilsu River Basin in China is located in the desert Gobi area with high sediment content and high hardness. After 4798h operation, the maintenance of a high‐head Francis turbine in this basin found that the guide vane was seriously worn, and even ...
Haiqi Wang   +7 more
doaj   +2 more sources

Analysis of Influence Factors of Guide Vanes Torque in Variable Geometry Turbine Adjusting Mechanism

open access: yesIEEE Access, 2023
More and more attention has been paid to research on variable geometry turbine engines with the increasing improvement of performance requirements for military turbines.
Yan Zhong   +5 more
doaj   +1 more source

Analysis of Timing Effect on Flow Field and Pulsation in Vertical Axial Flow Pump

open access: yesJournal of Marine Science and Engineering, 2021
Vertical axial flow pump device has the characteristics of large flow and low head, which is widely used in pumping station projects with head of 3–9 m. In order to study the influence of the timing effect of the impeller relative flow channel and guide ...
Fan Yang   +6 more
doaj   +1 more source

Numerical Investigation on Torsional Mode Self-Excited Vibration of Guide Vane in a Reversible Pump-Turbine during Pump Mode’s Starting Up [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
In reversible pump-turbines, guide vane vibrations are considered to have potentially severe consequences of noise and structural damage. Unstable torsional mode self-excited vibrations of guide vanes have been reported at small guide vane openings ...
W. Kang, Q. Liang, L. Zhou, Z. Wang
doaj   +1 more source

The Influence of Guide Vanes on Force Imposed to Bidirectional Shaft Tubular Pump

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Bidirectional shaft tubular pump is a device commonly used in hydraulic projects. The aim of this paper is to study the impact of guide vane numbers on the force imposed to the pump when it is under different working conditions.
LIN Pengcheng   +5 more
doaj   +1 more source

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