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Volume 32 Issue 06
Jun.  2006
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Journal of Beijing University of Aeronautics and Astronautics  > 2006  >  32(06): 630-634.
Huang Yong, Guo Zhihui. Improved semi-analytical correlation approach for the flowfield downstream of swirl cups[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 630-634. (in Chinese)
Citation: Huang Yong, Guo Zhihui. Improved semi-analytical correlation approach for the flowfield downstream of swirl cups[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 630-634. (in Chinese)
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Improved semi-analytical correlation approach for the flowfield downstream of swirl cups

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 15 Jun 2005
  • Publish Date: 30 Jun 2006
    Abstract
  • An improved semi-analytical correlation was proposed for the prediction of the flowfields downstream a typical swirl cup on the basis of previous correlations proposed by Rizk & Mongia. The improved correlation has clear physical definition and is adequate for its constants determination by large amount of experimental data. The comparison between the selected experimental data and the predictions by the correlation is quite well, especially about the characteristic data such as the peak velocity, the radial location of the peak velocity, the decay of the velocity, the size of the recirculation zone, and the development of the recirculation zone. Meanwhile, the influences of the constants in the correlation are shown quantitatively, and the possible reason has been analyzed briefly. The analysis showed that all the empirical constants were independent with each other, thus the semi-analytical correlation could be used easily as further validation for different data.

     

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  • [1] Wang H Y, McDonell V G, Sowa W A, et al. Characterization of a two-phase flow field downstream of a 3x-scale gas turbine coaxial, counter-swirling, combustor dome swirl cup . AIAA-92-0229, 1992 [2] Ateshkadi A, McDonell V G, Samuelsen G S. Effect of mixer geometry on fuel spray distribution, emission and stability . AIAA-98-0247, 1998 [3] Mongia H C, AI-Roub M, Danis A, et al. Swirl cup modeling:part 1 . AIAA 2001-3576, 2001 [4] Im K S, Lai M C, Tacina R. A parametric spray study of the swirler/venturi injectors . AIAA-98-3269, 1998 [5] Park J H, Yoon Y, Jeung I S, et al. Effect of swirl cup on characteristics of fuel spray in gas turbine combustors . AIAA 2000-3352, 2000 [6] Feng Shouyi, Huang Yong, Guo Zhihui. Experiments on the spray in a model combustor with swirl cup and primary hole flows Proc of 9th Annual Conference on Liquid Atomization and Spray System(ILASS-ASIA 2004). Shanghai:, 2004:217-224 [7] 郎洪俭,黄勇,郭志辉.双轴向旋流杯燃烧室主燃区流场特性 中国动力工程学会第三届青年科技工作者会议.南京:,2005 Lang Hongjian, Huang Yong, Guo Zhihui. The flowfield in the primary region after a double axial swirl cup Proc of 3rd Yang Scholar Conference on Power Engineering. Nanjing:, 2005(in Chinese) [8] Mongia H C, Gore J P, Grinstein F F, et al. Combustion research needs for helping development of next generation advanced combustors . AIAA 2001-3853, 2001 [9] Rizk N K, Mongia H C. Semi-analytical fuel injector performance correlation approach . AIAA-89-2902, 1989 [10] Rizk N K, Mongia H C. A semi-analytical aapproach validation for airblast atomizer . AIAA-90-0316, 1990 [11] Rizk N K, Mongia H C. Further validation of a semi-analytical approach for fuel injectors of different concepts . AIAA-90-2190, 1990 [12] Mongia H C, Vermeersch M, Held T J. A DRA modeling approach for correlating gaseous emissions of turbo-propulsion engine combustors . AIAA 2001-3419, 2001 [13] Mongia H C, Vermeersch M, Thomsen D, et al. A simple reactor-based approach for correlating lean blowout of turbopropulsion engine combustors . AIAA 2001-3420, 2001
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