Journal
THEORETICAL AND APPLIED MECHANICS LETTERS
Volume 9, Issue 6, Pages 363-375Publisher
ELSEVIER
DOI: 10.1016/j.taml.2019.05.004
Keywords
Triple swirler; Swirler design; Radial vane length; Passage width; Reynolds averaged Navier-Stokes
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Funding
- Korea Electric Power Corporation through Korea Electrical Engineering and Science Research Institute [18B-022]
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The design of axial or radial swirlers typically governs a number of geometrical parameters that are determined by the desired flow field. In the meantime, the number of unknown parameters increases with the number of concentrically mounted swirlers. The available literature is nonetheless limited, and designers are obligated to increase the number of initial assumptions. In this article, three kinds of triple swirlers are employed and simulations are performed to determine the effect of each parameter on the swirler performance. Based on the correlation provided, overlengthening the radial vane length could result in significant changes in the flow field from the jet-like pattern to a wide swirl-jet angle due to the Coanda effect. Passage width should also have the potential to alter the swirl-jet angle and velocity field at the exit of the swirler. (C) 2019 The Authors. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
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