Experimental and Numerical Investigation of Unforced unsteadiness in a Vaneless Radial Diffuser [PDF]
, 2011 The paper reports combined experimental and numerical investigations of unforced un- steadiness in a vaneless radial diffuser. Experimental data were obtained within the diffuser using stereoscopic time resolved Particle Image Velocimetry (PIV) recording
ARDIZZON, Guido +5 more
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Effects of non-axisymmetric tip clearance on axial compressor performance and stability [PDF]
, 1997 September 1997Statement of responsibility on title-page reads: M.B. Graf, T.S. Wong, E.M. Greitzer, F.E. Marble, C.S. Tan, H-W Shin, D.C. WislerIncludes bibliographical references (pages 34-35)The effects of circumferentially non-uniform tip clearance on
Graf, Martin Bowyer +6 more
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An Examination of Dynamic Stall Vortex Inception on a Finite Wmg [PDF]
, 2000 In the present study, the behaviour of the vorticity flux on a wing of NACA 0015 cross section was analysed for ramp-up motion over a range of dimensionless pitch rates. The variations in the vorticity flux were examined as a means to identify the role
Ferrecchia, Antonella +2 more
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Computational fluid dynamics simulations of blade damage effect on the performance of a transonic axial compressor near stall [PDF]
, 2014 Gas turbine axial compressor blades may encounter damage during service for various reasons such as damage by debris from casing or foreign objects impacting the blades, typically near the rotor’s tip.
Abdulnaser I Sayma +4 more
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A Three-Dimensional Unsteady CFD Model of Compressor Stability [PDF]
, 2006 A three-dimensional unsteady CFD code called CSTALL has been developed and used to investigate compressor stability. The code solved the Euler equations through the entire annulus and all blade rows.
Chima, Rodrick V.
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The Role of Tip Leakage Flow in Spike-Type Rotating Stall Inception [PDF]
Journal of Turbomachinery, 2017 This paper describes the role of tip leakage flow in creating the leading edge separation necessary for the onset of spike-type compressor rotating stall. A series of unsteady multipassage simulations, supported by experimental data, are used to define and illustrate the two competing mechanisms that cause the high incidence responsible for this ...
Hewkin-Smith, M. +4 more
openaire +5 more sources
Analysis of unswept and swept wing chordwise pressure data from an oscillating NACA 0012 airfoil experiment. Volume 1: Technical Report [PDF]
The unsteady chordwise force response on the airfoil surface was investigated and its sensitivity to the various system parameters was examined. A further examination of unsteady aerodynamic data on a tunnel spanning wing (both swept and unswept ...
Carta, F. O., St.hilaire, A. O.
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A study of the rotating-stall inception in high-speed compressors [PDF]
, 1994 Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1994.Includes bibliographical references (leaves 41-42).by Michail Tryfonidis.M ...
Tryfonidis, Michail
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Numerical Optimization of a Stall Margin Enhancing Recirculation Channel for an Axial Compressor
Fluids, 2019 A proof of concept is provided by computational fluid dynamic simulations of a new recirculating type casing treatment. This treatment aims at extending the stable operating range of highly loaded axial compressors, so to improve the safety of sorties of
Motoyuki Kawase, Aldo Rona
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Propeller dynamic and aeroelastic effects [PDF]
, 1980 Various aspects of propeller blade dynamics are considered including those factors which are exciting the blades and the dynamic response of the blades to the excitations.
Mccormick, B. W.
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