Zobrazeno 1 - 10
of 2 744
pro vyhledávání: '"Rotor stator"'
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 7, Pp 3088-3109 (2024)
Abstract Mixed‐flow pump is a typical pump using in low‐head cases of water lifting. The flow field pulsation is usually an important issue in the operation of mixed‐flow pumps and their pumping statins. Due to its large size, it is difficult t
Externí odkaz:
https://doaj.org/article/eb909b42771c4013b74985fde52006a0
Publikováno v:
World Journal of Engineering, 2023, Vol. 21, Issue 2, pp. 398-404.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/WJE-09-2022-0378
Autor:
Urszula Ferdek
Publikováno v:
Applied Sciences, Vol 14, Iss 22, p 10214 (2024)
The paper is concerned with the analysis of a six-degree-of-freedom non-linear model which describes the vibrations of a rotor. The model takes into account the impacts between the rotating element and a limiter of motion. Using numerical integration
Externí odkaz:
https://doaj.org/article/53be8ba510e84f2ca57c92aa2a1a2fef
Publikováno v:
Applied Sciences, Vol 14, Iss 16, p 7338 (2024)
In rotating machinery, aerodynamic forces and oil film forces often lead to cross-coupling stiffness. This paper is aimed at studying the stick-slip whirling vibrations induced by the piecewise smooth rotor/stator frictions in a modified flexible rot
Externí odkaz:
https://doaj.org/article/1ea17056cad84928b11c172a07bcad7a
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
Pumped storage is an important component of electrified wire netting. The safe and stable operation of pump turbines is extremely important. Among them, pressure pulsation is one of the main causes of pump turbine vibration. The characteristics of pr
Externí odkaz:
https://doaj.org/article/e73b920e51994cefa10aa0f0e453b192
Publikováno v:
Energies, Vol 17, Iss 12, p 3026 (2024)
Pump–turbine units with high heads are subjected to strong pressure pulsations from the unsteady transient flow in fluid channels, which can produce severe vibrations and high stresses on the pump–turbine structural components. Therefore, reducin
Externí odkaz:
https://doaj.org/article/f1d9cb79ad1d4fc4888900b18a512a32
Publikováno v:
Aerospace, Vol 11, Iss 5, p 403 (2024)
Particle image velocimetry (PIV) measurements were performed inside a low-pressure turbine cascade operating at engine-relevant high-speed and low-Re conditions to investigate the near-endwall flow. Of particular research interest was the dominant pe
Externí odkaz:
https://doaj.org/article/8758494ba99f4f288f0349dfcc9d6bcb
Autor:
Shiwei Ni, Guofeng Zhao, Yuxuan Chen, Haifeng Cao, Chenxing Jiang, Wei Zhou, Tao Yu, Zhijun Shuai
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 17, Iss 1 (2023)
In the paper, the modulation effect of rotor-stator interaction subjected to fluctuating rotation speed is investigated numerically. A quasi-bivariate variable mode decomposition method for analyzing non-stationary flow fields is proposed for the fir
Externí odkaz:
https://doaj.org/article/b11f1a3294aa41efa3fe8280ace19606
Publikováno v:
Propulsion and Power Research, Vol 11, Iss 4, Pp 496-510 (2022)
The main objective of this work is to investigate the effect of windage heating on the micro high-speed rotor-stator cavity. The influences of centrifugal force and spacing on the windage heating are analyzed with and without the change of gap ratio
Externí odkaz:
https://doaj.org/article/34a4cad2930446f89a25bb511e34cf1a
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 16, Iss 1, Pp 501-513 (2022)
Investigating the flow characteristics in the cavity by changing the rotor profile of the rotor-stator system is of considerable significance, this paper simplifies clearance flow to rotor-stator cavity flow. The numerical simulation results are comp
Externí odkaz:
https://doaj.org/article/639c7374ffd640a787b035f6fe9288aa