Analytical maps of aerodynamic damping as a function of operating condition for a compressor profile

Petrie-Repar, Paul J., McGhee, Andrew, Jacobs, Peter A. and Gollan, Rowan (2006). Analytical maps of aerodynamic damping as a function of operating condition for a compressor profile. In: Proceedings of the GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air.. TE06: ASME Turbo Expo 2006, Barcelona, Spain, (1133-1144). 8-11 May 2006. doi:10.1115/GT2006-90829


Author Petrie-Repar, Paul J.
McGhee, Andrew
Jacobs, Peter A.
Gollan, Rowan
Title of paper Analytical maps of aerodynamic damping as a function of operating condition for a compressor profile
Conference name TE06: ASME Turbo Expo 2006
Conference location Barcelona, Spain
Conference dates 8-11 May 2006
Convener International Gas Turbine Institute
Proceedings title Proceedings of the GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air.
Journal name ASME Conference Proceedings
Place of Publication New York, NY, U.S.A.
Publisher ASME
Publication Year 2006
Sub-type Fully published paper
DOI 10.1115/GT2006-90829
ISBN 9780791842409
0791842401
Volume 42401:5
Issue A and B
Start page 1133
End page 1144
Total pages 12
Collection year 2006
Language eng
Formatted Abstract/Summary In this paper, analytical maps of aerodynamic damping for a two-dimensional compressor cascade (Standard Configuration 10) are presented. The maps are shown as contour plots of the aerodynamic damping as a function of operating condition. The aerodynamic dampings were calculated by a linearized Navier-Stokes flow solver. The flutter boundaries over a wide range of operating conditions are clearly shown on the damping maps and were found to be strongly dependent on the mode frequency and the mode shape. Extremely low values of negative aerodynamic damping were predicted for some off-design operating conditions where flow separation occurred. A damping map was also constructed based on inviscid flow simulations. There were differences in the viscous and inviscid flutter boundaries particularly at off-design inflow angles. The extremely low values of negative aerodynamic damping were only predicted by the viscous simulations and not the inviscid simulations.
©2006 ASME
Subjects E1
290299 Aerospace Engineering not elsewhere classified
690302 Space transport
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Full proceedings on CDROM-ISBN: 9780791837740; 0791837742. Published in Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B

 
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Created: Thu, 23 Aug 2007, 22:36:02 EST