Results 21 to 30 of about 21,138 (359)

Comparative Study of Unsteady Flows in a Transonic Centrifugal Compressor with Vaneless and Vaned Diffusers

open access: yesInternational Journal of Rotating Machinery, 2005
To reduce vibration and noise level, the impeller and diffuser blade numbers inside an industrial compressor are typically chosen without common divisors. The shapes of volutes or collectors in these compressors are also not axis-symmetric. When impeller
Michael M. Cui
doaj   +2 more sources

Laser Velocimetry Measurements in a Double Volute Centrifugal Pump

open access: yesInternational Journal of Rotating Machinery, 1995
Laser velocimetry measurements were taken in a double volute/single discharge centrifugal pump (0.60 specific speed, 1583 US units) with symmetrical volute halves.
William De Ojeda   +2 more
doaj   +1 more source

Design and Numerical Analysis of Flow Characteristics in a Scaled Volute and Vaned Nozzle of Radial Turbocharger Turbines

open access: yesEnergies, 2020
Over the past few decades, the aerodynamic improvements of turbocharger turbines contributed significantly to the overall efficiency augmentation and the advancements in downsizing of internal combustion engines.
Andrés Omar Tiseira Izaguirre   +3 more
doaj   +1 more source

The influence of secondary flow structures in a turbocharger turbine housing in steady state and pulsating flow conditions [PDF]

open access: yes, 2016
This paper presents a computational investigation into the effect of volute secondary flow structures on turbine inlet flow conditions. The steady state results show Dean type vortices exist early in the volute.
Jupp, Martyn   +2 more
core   +1 more source

Reduction of radial thrust by using triple-volute casing

open access: yesAin Shams Engineering Journal, 2019
A complete centrifugal pump is designed and manufactured. The volute is designed such that partition vanes could be added to change the number of volutes. Experiments were performed on single-, double-, triple-volute centrifugal pump at 500, 800, and 900 
E.M. Mina   +2 more
doaj   +1 more source

Two Fikellura Vase Painters [PDF]

open access: yes, 1986
In the past fifty years scholars have depended on R.M. Cook’s excellent classification and study of Fikellura pottery whenever dealing with examples of this East Greek ware in their work.1 Cook made additions and corrections to his original ...
Schaus, Gerald
core   +2 more sources

Investigation on Vibration Characteristics in a Centrifugal Pump with Special Slope Volute

open access: yesAdvances in Mechanical Engineering, 2015
Vibration is one of the main problems which should be considered seriously in designing and operating a centrifugal pump. In this paper, a special slope volute was proposed to reduce vibration level of centrifugal pump.
Ning Zhang   +3 more
doaj   +1 more source

Double-Tongue Worm Shell Structure on Plastic Centrifugal Pump Performance Study

open access: yesApplied Sciences, 2023
Aiming at the problem of high vibration and high wear of centrifugal pump tongue, this paper proposes a double-tongue volute structure. Under the condition of ensuring the reliability of CFD results, the influence of various combinations of tongue and ...
Zhi Rao, Lingfeng Tang, Hui Zhang
doaj   +1 more source

Theoretical Study of Fluid Forces on a Centrifugal Impeller Rotating and Whirling in a Volute [PDF]

open access: yes, 1988
Fluid forces on a rotating and whirling centrifugal impeller in a volute are analyzed with the assumption of a two-dimensional rotational, inviscid flow. For simplicity, the flow is assumed to be perfectly guided by the impeller vanes.
Acosta, A. J.   +2 more
core   +1 more source

A multifrequency instability of cavitating inducer systems [PDF]

open access: yes, 2006
Recent testing of high speed cavitating turbopump inducers has revealed the existance of more complex instabilities than the previously-recognized cavitating surge and rotating cavitation.
Brennen, Christopher E.
core   +2 more sources

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