Results 21 to 30 of about 15,235 (310)
Real-Time Detection of Faults in Rotating Blades Using Frequency Response Function Analysis
Applied Mechanics, 2023 Turbo machines develop faults in the rotating blades during operation in undesirable conditions. Such faults in the rotating blades are fatigue cracks, mechanical looseness, imbalance, misalignment, etc.
Ravi Prakash Babu Kocharla +2 more
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Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]
, 2012 An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
NOURI, Hussain +9 more
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Advances in Mechanical Engineering, 2016 Blades act as key components for twin-blade planetary mixer; their geometric parameters (blade–blade clearance and helical angle) and two different rotating modes (counter-rotating mode and co-rotating mode) were investigated numerically via commercial ...
Jian Liang +4 more
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Behavior of the Blade Tip Vortices of a Wind Turbine Equipped with a Brimmed-Diffuser Shroud
Energies, 2012 To clarify the behavior of the blade tip vortices of a wind turbine equipped with a brimmed-diffuser shroud, called a “Wind-Lens turbine”, we conducted a three-dimensional numerical simulation using a large eddy simulation (LES ...
Takanori Uchida +4 more
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Energies, 2022 This paper establishes a multidisciplinary method combining conjugate heat transfer (CHT) and thermal stress for a high-temperature Ni-based superalloy turbine rotor blade with integrated cooling structures.
Xiaoru Qian +3 more
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Energies, 2022 In order to clearly show the influence on the rotating stall of the impeller of a double-suction centrifugal pump, this paper, using the numerical simulation method of Shear Stress Transform (SST), analyzes the effects of different inlet angles of the ...
Hao Wang +4 more
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Hangkong gongcheng jinzhan, 2018 Rotating blades are key components in aircraft engine, the vibration characteristics and vibration reduction technology is rather important for engine performance, structural integrity, and work reliability.
Qin Jie, Yan Qun, Huang Wenchao
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An Improved Circumferential Fourier Fit (CFF) Method for Blade Tip Timing Measurements
Applied Sciences, 2020 Rotating blade vibration measurements are very important for any turbomachinery research and development program. The blade tip timing (BTT) technique uses the time of arrival (ToA) of the blade tip passing the casing mounted probes to give the blade ...
Zhibo Liu +5 more
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Applied Sciences, 2020 Rotating stall, which is a common phenomenon in turbomachinery, strongly relates to the flow rate condition. In centrifugal impellers, rotating stall was induced by the incidence angle on blade leading-edge at partial-load.
Hongying Luo +3 more
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Comparison of Various Turbulence Models in Rotating Machinery Blade‐to‐Blade Passages [PDF]
International Journal of Rotating Machinery, 1999 Numerical calculations on four blade passages are done using Q3D Navier‐Stokes solver with a simple mixing length turbulence model and two more advanced transport‐equation approaches. Mixing length is simple and cheap but crude, while more sophisticated transport approaches are more physical but more expensive.
E. Y. K. Ng, S. T. Tan
openaire +2 more sources