Results 11 to 20 of about 374 (172)
Characterization of Unsteady Leakage Flow in an Axial Fan
International 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
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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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Machines, 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
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Study on the Damping Mechanism of the Shrouded Blade considering Contact Features
Shock 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
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A Review of Turbine and Compressor Aerodynamic Forces in Turbomachinery
Lubricants, 2023 Aerodynamic forces due to blade-tip clearance eccentricity are a known destabilizing source in rotating machinery with unshrouded impellers. Dynamic forces also appear in shrouded impellers, due to changes in the pressure in the gap between the impeller ...
Luis San Andrés
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International 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
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Effect of Relative Movement between the Shroud and Blade on Tip Leakage Flow Characteristics
Energies, 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
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EFFECT OF FORCED ROTATING VANELESS DIFFUSERS ON CENTRIFUGAL COMPRESSOR STAGE PERFORMANCE [PDF]
Journal of Engineering Science and Technology, 2011 Non-uniform flow at the exit of the centrifugal impeller mixes in the vaneless space of the diffuser causing a rise in static pressure as well as significant loss of total pressure.
S. SERALATHAN, M. GOVARDHAN
doaj
Archives of Foundry Engineering, 2015 Turbine blades have complex geometries with free form surface. Blades have different thickness at the trailing and leading edges as well as sharp bends at the chord-tip shroud junction and sharp fins at the tip shroud.
Raza M., Irwin M., Fagerström B.
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Characteristics of rotating instability in a centrifugal blower with shrouded impeller
Transactions of the JSME (in Japanese), 2014 The Rotating instability, abbreviated to RI, in a centrifugal blower with shrouded impeller is investigated by experiments and CFD analyses. The RI occurs in a partial-flow operation of the blower prior to stall with mild fluctuations of impeller-discharge velocity and radiated noise, and appears in the power spectra as a gradual hump at almost half of
FUKUDA, Yasuyuki +2 more
openaire +3 more sources