Results 91 to 100 of about 32,009 (212)

Influence of stationary components on unsteady flow in industrial centrifugal compressors [PDF]

An experimental investigation was performed to determine the characteristics of the onset and the growth of rotating nonuniform flow in a standard low specific speed stage, normally utilized in high pressure applications, in relation to change of ...
Bonciani, L., Terrinoni, L.
core   +1 more source

Control of rotating stall in a low-speed axial flow compressor using pulsed air injection: modeling, simulations, and experimental validation [PDF]

, 1995
Previous results in the use of pulsed air injection for active control of rotating stall have suggested that air injectors have the effect of shifting the steady state compressor characteristic.
Behnken, Robert L., D'Andrea, Raffaello, Murray, Richard M.   +2 more
core  

EEMD analysis of unsteady pressure pulsations of a high-pressure reactor circulating pump under off-design working conditions

Nuclear Engineering and Technology
High-pressure reactor circulating pumps are widely used in nuclear power systems to maintain the cooling circulation of reactors and serve as the primary loop pump.
Ning Zhang, Jiaqing Chen, Hui Liu, Mona Gad, Bo Gao   +4 more
doaj   +1 more source

Unsteady flows in axial turbomachines [PDF]

, 1957
Of the various unsteady flows that occur in axial turbomachines certain asymmetric disturbances, of wave length large in comparison with blade spacing, have become understood to a certain extent.
Marble, Frank E., Rannie, W. Duncan
core   +1 more source

Review of flow instability in gas-turbine compression system

Propulsion and Power Research
Compressor instability, particularly stall and surge, poses significant challenges to the performance, efficiency, and reliability of axial compressors in aerospace and power-generation systems.
Jingyi Zeng, Feng Liu
doaj   +1 more source

Generation Mechanisms of Rotating Stall and Surge in Centrifugal Compressors. [PDF]

Flow Turbul Combust, 2018
Sundström E, Semlitsch B, Mihăescu M.
europepmc   +1 more source

Subsynchronous vibrations in a high pressure centrifugal compressor: A case history [PDF]

Two distinct aerodynamically excited vibrations in a high pressure low flow centrifugal compressor are documented. A measured vibration near 21% of running speed was identified as a nonresonant forced vibration which results from rotating stall in the ...
Evans, B. F., Smalley, A. J.
core   +1 more source

Analysis of distortion data from TF30-P-3 mixed compression inlet test [PDF]

A program was conducted to reduce and analyze inlet and engine data obtained during testing of a TF30-P-3 engine operating behind a mixed compression inlet.
King, R. W., Muller, R. G., Schuerman, J. A.   +2 more
core   +1 more source

Effect of grooved casing treatment on the flow range capability of a single-stage axial-flow compressor [PDF]

Comparisons of the results of testing a single-stage axial-flow compressor with a solid-wall casing and with grooved casings are presented. The depth, location, and number of circumferential grooves in the casing over the casing over the rotor tip were ...
Bailey, E. E.
core   +1 more source

Nonlinear Analysis of Rotating Stall

Nonlinear Analysis of Rotating Stall
A new stall model to describe rotating stall in axial flow compressors is established, where blade rows are replaced by semi-actuator discs (finite chord and infinitesimal pitch), flow fluctuations are permitted to be finite and nonsteady, and cascade characteristics are taken into consideration in both nonlinear and nonsteady forms.
openaire