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Show CONCLUSIONS The inviscid flow analysis used to predict and interpret the NFA1 and NFA2 results have been shown to be capable of estimating many important aspects of the flow field produced by an expanding swirling flow and, perhaps just as valuable, have enabled many aspects of the behavior of swirling flows to be understood. In combination with empirical corrections developed from well-controlled experiments, the inviscid model has been successful in establishing the influence of the swirl level, swirl profile, quarl and furnace geometry, and the burner geometry on the near burner flow field. REFERENCES [1] Hagiwara, A. and S. Bortz, Studies on the near field aerodynamics of swirl burnersresults of the NFA1 investigation, IFRF Doc. no. F 259/a/1 [2] Bortz, S. and A. Hagiwara, Theoretical and experimental studies on isothermal expanding swirling flows with application to swirl burner deSign, IFRF Doc. no. F 259/a/2 [3] Hagiwara, A., S. Bortz and R. Weber, Studies on the near field aerodynamics of swirl burners - results of the NFA2 investigation, IFRF Doc. no. F 259/a/3 [4] G. Batchelor, "An Introduction to Fluid Dynamics", Cambridge University Press, 1967 97 |