Planar velocity measurements under cold-flow conditions in a swirl-stabilized dump combustor typical of land-based gas turbine combustors were carried out using two-dimensional particle image velocimetry (PIV). Axial, radial, and tangential velocity components were measured sequentially using two experimental configurations. Mean and root-mean-squared velocity components are presented along with instantaneous realizations of the flowfield. A numerical study of the flowfield using large-eddy simulation (LES) and Reynolds-averaged Navier-Stokes (RANS) techniques was conducted in an effort to help understand the complex hydrodynamics observed in the experiments. The agreement between the experimental data and LES simulation was good with both showing evidence of a precessing vortex core. The results of the RANS simulation were not as encouraging. The results provide a fundamental understanding of the complex flowfield associated with the relatively simple geometry and also serve as a baseline validation dataset for further numerical simulations of the current geometry. Validation of LES models in a highly swirled, nonreacting flowfield such as the work presented here is an essential step towards more accurate prediction in a reacting environment.
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e-mail: peter.strakey@netl.doe.gov
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July 2007
Technical Papers
Experimental and Numerical Investigation of a Swirl Stabilized Premixed Combustor Under Cold-Flow Conditions
P. A. Strakey,
e-mail: peter.strakey@netl.doe.gov
P. A. Strakey
National Energy Technology Laboratory
, 3610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507
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M. J. Yip
M. J. Yip
National Energy Technology Laboratory
, 3610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507
Search for other works by this author on:
P. A. Strakey
National Energy Technology Laboratory
, 3610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507e-mail: peter.strakey@netl.doe.gov
M. J. Yip
National Energy Technology Laboratory
, 3610 Collins Ferry Road, P.O. Box 880, Morgantown, WV 26507J. Fluids Eng. Jul 2007, 129(7): 942-953 (12 pages)
Published Online: January 18, 2007
Article history
Received:
April 3, 2006
Revised:
January 18, 2007
Citation
Strakey, P. A., and Yip, M. J. (January 18, 2007). "Experimental and Numerical Investigation of a Swirl Stabilized Premixed Combustor Under Cold-Flow Conditions." ASME. J. Fluids Eng. July 2007; 129(7): 942–953. https://doi.org/10.1115/1.2743665
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