Results 121 to 130 of about 4,884 (235)

Determination of compressor in-stall characteristics from engine surge transients [PDF]

A technique for extracting the in-stall pumping characteristics for an axial flow compressor operating in an engine system environment is developed. The technique utilizes a Hybrid computer simulation of the compressor momentum equation into which actual
Chiaramonte, F. P., Lorenzo, C. F., Mehalic, C. M.   +2 more
core   +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

Full annulus simulation on a multistage axial-centrifugal combined compressor

Journal of the Global Power and Propulsion Society
Axial-centrifugal combined compressors are widely used in small and medium aero-engines. This study aims to investigate the performance and flow characteristics of a multistage axial-centrifugal compressor using annulus unsteady simulation. The compressor comprises three axial stages and one radial stage, including the inlet and outlet guide vanes. The
Cheng Tian, Jiaan Li, Xinqian Zheng, Xiwu Liu, Xueqi Zou, Song Fu   +5 more
openaire   +1 more source

Transonic compressor technology advancements [PDF]

The highlights of the NASA program on transonic compressors are presented. Effects of blade shape and throat area on losses and flow range are discussed. Some effects of casing treatment on stall margin are presented.
Benser, W. A.
core   +1 more source

Cryogenic technology for infrared detection in space. [PDF]

Sci Rep, 2022
Han Y, Zhang A.
europepmc   +1 more source

Investigation on the Flow Field Entropy Structure of Non-Synchronous Blade Vibration in an Axial Turbocompressor. [PDF]

Entropy (Basel), 2020
Zhang M, Hou A.
europepmc   +1 more source

Incompressible lifting-surface aerodynamics for a rotor-stator combination [PDF]

Current literature on the three dimensional flow through compressor cascades deals with a row of rotor blades in isolation. Since the distance between the rotor and stator is usually 10 to 20 percent of the blade chord, the aerodynamic interference ...
Ramachandra, S. M.
core   +1 more source

Experimental evaluation of outer case blowing or bleeding of single stage axial flow compressor. Part I - Design of rotor and bleeding and blowing configurations [PDF]

Rotor design to evaluate outer case blowing or bleeding of single stage axial flow ...
Griffin, R. G., Smith, L. H., Jr.
core   +1 more source

An Evaluation of Passive Wall Treatment with Circumferential Grooves at the Casing of the First and Second Blade Rotor Rows of a High-Performance Multi-Stage Axial Compressor

Aerospace
The internal losses in the tip clearance region strongly influence the compressor performance and its operational range. Previous research proved that passive wall treatments with circumferential grooves in axial compressors effectively increase the ...
Ruben Bruno Diaz, Jesuino Takachi Tomita, Cleverson Bringhenti, Franco Jefferds dos Santos Silva, Diogo Ferraz Cavalca   +4 more
doaj   +1 more source

Application of Digital Twins and Metaverse in the Field of Fluid Machinery Pumps and Fans: A Review. [PDF]

Sensors (Basel), 2022
Yang B, Yang S, Lv Z, Wang F, Olofsson T.   +4 more
europepmc   +1 more source