Results 11 to 20 of about 27,884 (312)
AIP Advances, 2021 A long flexible rotating pipe in flow is investigated by using an improved discrete vortex method and finite element method. For the pipe without rotation, the lock-in phenomenon has been confirmed and discussed and the motion characteristics are ...
Wei Chen +3 more
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Unsteady Flow and Whirl-Inducing Forces in Axial-Flow Compressors: Part II — Analysis [PDF]
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 2000 An experimental and theoretical investigation was conducted to evaluate the effects seen in axial-flow compressors when the centerline of the rotor becomes displaced from the centerline of the static structure of the engine, thus creating circumferentially non-uniform, rotor-tip clearances.
Song, S. J. +7 more
openaire +2 more sources
Journal of Marine Science and Engineering, 2021 Many annular seals suffer eccentricity because of rotor–stator misalignment or the deflection of a flexible rotor, which has a strong influence on the vibration characteristics and stability of rotating machines.
Fengqin Li +4 more
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Analysis of fluid-induced force of centrifugal pump impeller with compound whirl
Alexandria Engineering Journal, 2020 In order to research the fluid-induced force of centrifugal pump impeller with compound whirling, based on the N-S equations, the RNG k-ε turbulence model is applied to simulate the low specific speed centrifugal pump under eccentric assembly condition ...
Wenjie Zhou +4 more
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Analysis and Test on the Effect of Bearing Vibration on Oil Film Whirl
Zhongguo dianli, 2020 In order to study the coupling effect of bearing vibration on oil whirl, the motion mechanism of bearing vibration is analyzed, and the dynamic equation representing the effect of bearing vibration on oil whirl is established.
Guoan HE +4 more
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Clinical Practice and Cases in Emergency Medicine, 2022 Introduction: Testicular torsion, or the twisting of the spermatic cord compromising blood flow to the testis, is a urologic emergency with the potential to cause infertility in male patients.
Graham S. Stephenson, Mark I. Langdorf
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Model predictions and experimental results for the rotordynamic characteristics of leakage flows in centrifugal pumps [PDF]
, 1993 The role played by fluid forces in determining the rotordynamic stability and characteristics of a centrifugal pump is gaining increasing attention. The present research investigates the contributions to the rotordynamic forces from the discharge-to ...
Brennen, Christopher E. +1 more
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Machines, 2022 Many randomly uncertain factors inevitably arise when gas flows through a labyrinth seal, and the orbit of the rotor center will not rotate along a steady trajectory, as previously studied.
Xin Xiong, Yanfei Zhou, Yiqun Wang
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Applied Sciences, 2021 Having come of age, gas film bearings enable high-speed oil-free (micro) rotating machinery with gains in efficiency and reliability, longer maintenance intervals, and a reduction in contaminants released to the atmosphere.
Luis San Andrés +2 more
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Applied Sciences, 2020 A numerical study of the fire whirl formation under symmetrical and asymmetrical entraining configuration is presented. This work aims to assess the effect of eddy-generation configuration on the evolution of the intriguing phenomenon coupled with both ...
Cheng Wang +7 more
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