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|Title: ||Experimental study of the unsteady aerodynamics the compressor-combustor interface of a lean burn combustion system|
|Authors: ||Walker, Alastair Duncan|
Carrotte, Jonathan F.
McGuirk, James J.
|Issue Date: ||2013|
|Publisher: ||Copyright © 2013 by A. Duncan Walker , Jonathon F. Carrotte , Graham L. Peacock , Adrian Spencer and James J. McGuirk. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission|
|Citation: ||WALKER, A.D. ...et al., 2013. Experimental study of the unsteady aerodynamics the compressor-combustor interface of a lean burn combustion system. IN: 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, San Jose, California, 14-17th July. http://dx.doi.org/10.2514/6.2013-3603|
|Abstract: ||To meet the technological challenges of lean burn, low emission combustion knowledge based design methodologies must be developed. This paper presents back-to-back, time-averaged and time-resolved aerodynamic measurements made using a unique state-of-the-art fully annular isothermal test facility incorporating a 1/2 stage axial compressor and a typical lean burn, low emission combustor geometry and either a clean or a strutted OGV/pre-diffuser system. The various measurement techniques employed (miniature five-hole probe, hot-wire anemometry, PIV) show a good level of agreement highlighting both the effect of including pre-diffuser struts and the notable unsteadiness present in the OGV/pre-diffuser system. The data presented provide the first evidence of the highly unsteady nature of the flow issuing from a pre-diffuser and potentially influencing the downstream external combustor aerodynamics.|
|Description: ||This is a conference paper.|
|Sponsor: ||This work was undertaken as part of the four year KIAI project. This European initiative started in May 2009 and was financed by the European Community's Seventh Framework Programme under Grant Agreement No. ACP8-GA-2009-234009FP7|
|Publisher Link: ||http://dx.doi.org/10.2514/6.2013-3603|
|Appears in Collections:||Conference Papers and Presentations (Aeronautical and Automotive Engineering)|
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