Results 21 to 30 of about 216,510 (210)

Effect of impeller shroud trimming on the hydraulic performance of centrifugal pumps with low and medium specific speeds

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
The effect of pump impeller modification by a new approach, pump impeller shroud trimming (PIST), on the flow field and pump performance is examined both numerically and experimentally.
M. Shadab   +4 more
doaj   +1 more source

Experimental Study of the Leakage Flow in an Axial-Flow Fan at Variable Loading

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2021
The present paper reports a 2D-PIV (particle image velocimetry) study of the effect of the operating point on the leakage flow in a low-speed ring fan.
Edward Canepa   +3 more
doaj   +1 more source

Measurement Of Aerodynamically Induced Blade Distortion On A Shrouded Counter-Rotating Prop-Fan [PDF]

open access: yesProceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, 2022
Blade deformation on a 1 m diameter composite fan rotor is measured simultaneously using stereoscopic image pattern correlation technique (IPCT) and blade-tip imaging. Absolute referencing of the blades is made possible by simultaneously tracking a marker on the hub using a fourth camera.
Klinner, Joachim   +6 more
openaire   +2 more sources

Characterization of Unsteady Leakage Flow in an Axial Fan

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
The present work reports an experimental study of the leakage flow in a low-speed fan ring. Existing 2D Particle Image Velocimetry (PIV) measurements taken in a meridional plane in front of the rotor gap have been further processed and analyzed by means ...
Matteo Dellacasagrande   +3 more
doaj   +1 more source

Leakage flow simulation in a specific pump model [PDF]

open access: yes, 2014
This paper deals with the influence of leakage flow existing in SHF pump model on the analysis of internal flow behaviour inside the vane diffuser of the pump model performance using both experiments and calculations. PIV measurements have been performed
ROUSSETTE, Olivier   +6 more
core   +1 more source

Experimental Study and 3D Optimization of Small-Scale Solar-Powered Radial Turbine Using 3D Printing Technology

open access: yesMachines, 2023
Small-Scale Turbines (SSTs) are among the most important energy-extraction-enabling technologies in domestic power production systems. However, owing to centrifugal forces, the high rotating speed of SSTs causes excessive strains in the aerofoil portions
Ahmed M. Daabo   +8 more
doaj   +1 more source

Study on the Damping Mechanism of the Shrouded Blade considering Contact Features

open access: yesShock and Vibration, 2019
A dynamic model of the rotating shrouded blade is established, considering the shroud mass, the Coriolis force, and the centrifugal stiffening effect.
Chaofeng Li   +3 more
doaj   +1 more source

Transition Process from Diffuser Stall to Stage Stall in a Centrifugal Compressor with a Vaned Diffuser

open access: yesInternational Journal of Rotating Machinery, 2017
The transition process from a diffuser rotating stall to a stage stall in a centrifugal compressor with a vaned diffuser was investigated by experimental and numerical analyses. From the velocity measurements, it was found that the rotating stall existed
Nobumichi Fujisawa, Yutaka Ohta
doaj   +1 more source

Shaping the Flow: Impact of Blade Shape on Performance and Hemocompatibility in Rotodynamic Blood Pumps. [PDF]

open access: yesArtif Organs
Blade shapes (leading‐edge geometry and thickness) in rotodynamic blood pumps were systematically evaluated. Thinner blades improve pump efficiency by reducing blockage effects, while neither blade thickness nor leading‐edge geometry shows clear hemocompatibility benefits. Overall, blade shape has a limited impact on hemocompatibility, indicating it is
Torner B   +7 more
europepmc   +2 more sources

Effect of Relative Movement between the Shroud and Blade on Tip Leakage Flow Characteristics

open access: yesEnergies, 2017
An experimental and numerical investigation into the tip leakage flow of a turbine rotor is carried out using a particle image velocimetry (PIV) system and the commercial software ANSYS CFX 14.0.
Xiaochun Wang   +3 more
doaj   +1 more source

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