Results 261 to 270 of about 5,605 (299)

Dynamic inlet distortion predictions using a CFD/distortion synthesis approach

16th AIAA Applied Aerodynamics Conference, 1998
A procedure is presented to predict dynamic inlet distortion using a combined CFD and distortion synthesis method. A prediction of the steady state total pressure pattern at the Aerodynamic Interface Plane (AIP) is first obtained using a CFD Navier-Stokes program incorporating a two-equation turbulence model. A corresponding inlet turbulence pattern is
John Ladd, William Norby
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Inlet Distortion Effects in Axial Compressors

Journal of Fluids Engineering, 1980
Although uniform inlet conditions are highly desirable and system designers attempt to insure distortion-free flow entering compressors, situations frequently arise in which substantial total pressure, velocity, and angle variations exist at the compressor inlet.
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Inducer Stall in a Centrifugal Compressor With Inlet Distortion

Journal of Turbomachinery, 1987
The effects of inlet distortion on the inducer stall in a centrifugal compressor are investigated. Cases of both radial and circumferential distortion are investigated. It is shown that the rotating stall onset is amplified by radial distortions, and restrained by circumferential distortions.
I. Ariga, S. Masuda, A. Ookita
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Calculation of various diffuser flows with inlet swirl and inlet distortion effects

AIAA Journal, 1983
A method of predicting the properties of various turbulent flows in planar, conical, and annular diffusers with inlet swirl and inlet distortion effects has been developed and appraised. The numerical scheme is based on the fully conservative control volume representation of governing conservation equations.
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Effect of Inlet Distortions on Ducted Fan Noise

22nd AIAA/CEAS Aeroacoustics Conference, 2016
The paper presents an investigation of flow and noise produced by a generic ECS fan installed in a circular duct.
Michael Shur, Michael Strelets, Andrey Travin, Julien Christophe, Korcan Kucukcoskun, Christophe F. Schram, Stefan Sack, Mats Åbom   +7 more
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A Methodology for Assessing Inlet Swirl Distortion

2017
<div class="section abstract"> <div class="htmlview paragraph">This Aerospace Information Report (AIR) addresses the subject of aircraft inlet-swirl distortion. A structured methodology for characterizing steady-state swirl distortion in terms of swirl descriptors and for correlating the swirl descriptors with loss in stability pressure ...
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Laser velocimetry for turbofan inlet distortion applications

Aircraft Engineering and Aerospace Technology, 2020
Purpose The purpose of this paper is to assess state-of-the-art techniques for quantifying flow distortion in the inlets of turbofan engines, particularly with respect to the prospects for future flight applications. Design/methodology/approach To adequately characterize the flow fields of complex aircraft inlet distortions, the author has ...
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Distorted Flow Field in Compressor Inlet Channels

Journal of Engineering for Gas Turbines and Power, 1985
Solving the complex inlet-distortion related problems in turbojets or turbofans has become crucial to the successful development of new-generation engines. In order to curtail costs, reliable prediction methods, both analytical and numerical, must be developed and implemented. ONERA has been studying this problem for several years now.
P. Bry, P. Laval, G. Billet
openaire   +1 more source

Influence of inlet distortion on the wear of aero-compressor blades

International Journal of Mechanical Sciences, 2022
Guangfu Bin, Weimin Wang
exaly  

Experimental simulation methodology and spatial transition of complex distortion fields in a S-shaped inlet

Aerospace Science and Technology, 2021
Guoxing Song, Mengxiao Tang
exaly