Results 21 to 30 of about 10,932 (206)

EFFECT OF FORCED ROTATING VANELESS DIFFUSERS ON CENTRIFUGAL COMPRESSOR STAGE PERFORMANCE [PDF]

open access: yesJournal 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  

The Effect of Shell Thickness, Insulation and Casting Temperature on Defects Formation During Investment Casting of Ni-base Turbine Blades

open access: yesArchives 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.
doaj   +1 more source

Phase‐Averaged Method Applied to Periodic Flow Between Shrouded Corotating Disks [PDF]

open access: yesInternational Journal of Rotating Machinery, 2002
This study investigates the coherent flow fields between corotating disks in a cylindrical enclosure. By using two laser velocimeters and a phase‐averaged technique, the vortical structures of the flow could be reconstructed and their dynamic behavior was observed.
Shen-Chun Wu, Yau-Ming Chen
openaire   +6 more sources

Unsteady behavior and mechanism of a rotating stall in a centrifugal compressor with vaneless diffuser

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Unsteady diffuser stall behavior in a centrifugal compressor with a vaneless diffuser was investigated by experimental and computational analyses. The diffuser stall generated as the mass flow rate decreased. The diffuser stall cell rotated at 25-30 % of
Nobumichi FUJISAWA   +3 more
doaj   +1 more source

Blade dynamic stress analysis of rotating bladed disks [PDF]

open access: yesApplied and Computational Mechanics, 2007
The paper deals with mathematical modelling of steady forced bladed disk vibrations and with dynamic stress calculation of the blades. The blades are considered as 1D kontinuum elastic coupled with three-dimensional elastic disk centrally clamped into ...
Kellner J., Zeman V.
doaj  

Leakage Noise and Related Flow Pattern in a Low-Speed Axial Fan with Rotating Shroud

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
The effect of rotational speed and pressure rise on the leakage flow noise radiated by a low-speed axial fan, provided with rotating shroud, has been systematically investigated.
Edward Canepa   +2 more
doaj   +1 more source

Impeller Design of a Centrifugal Fan with Blade Optimization

open access: yesInternational Journal of Rotating Machinery, 2011
A method is presented for redesigning a centrifugal impeller and its inlet duct. The double-discharge volute casing is a structural constraint and is maintained for its shape. The redesign effort was geared towards meeting the design volute exit pressure
Yu-Tai Lee   +6 more
doaj   +1 more source

Thermal stress minimized, two component, turbine shroud seal [PDF]

open access: yes, 1988
In a turbine machine, a two-component shroud seal which maximizes insulation and sealing around the rotating turbine blades, and is made by independently fabricating each of the two components then joining them together, is disclosed.
Handschuh, Robert F.
core   +1 more source

How Signals of Silence Sustain Sexual Harassment and What to Do About It

open access: yesHuman Resource Management, EarlyView.
ABSTRACT Sexual harassment has persisted for decades as an open secret within organizations, creating an ongoing challenge for Human Resource practitioners. Many employees experience or witness harassment yet say nothing. When they contemplate complaining, they are discouraged from doing so. Some still muster the courage to speak out about these abuses,
Angela L. Workman‐Stark   +6 more
wiley   +1 more source

A Casing Treatment with Axial Grooves for Centrifugal Compressors

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2019
This paper provides an investigation of a casing treatment (CT) approach for pressure ratio improvements of centrifugal compressors between peak efficiency and surge.
Sebastian Leichtfuß   +4 more
doaj   +1 more source

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