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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/19070

Title: Experimental study of the unsteady aerodynamics the compressor-combustor interface of a lean burn combustion system
Authors: Walker, Alastair Duncan
Carrotte, Jonathan F.
Peacock, Graham
Spencer, Adrian
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
Version: Accepted
DOI: 10.2514/6.2013-3603
URI: https://dspace.lboro.ac.uk/2134/19070
Publisher Link: http://dx.doi.org/10.2514/6.2013-3603
ISBN: 9781624102226
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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