Investigation of the Influence of the Inlet Geometry on the Flow in a Swirl Burner

Manuel García-Villalba (), Jochen Fröhlich () and Wolfgang Rodi ()
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Manuel García-Villalba: Universität Karlsruhe, Institut für Hydromechanik
Jochen Fröhlich: Universität Karlsruhe, Institut für Techische Chemie und Polymerchemie
Wolfgang Rodi: Universität Karlsruhe, Institut für Hydromechanik

A chapter in High Performance Computing in Science and Engineering ’06, 2007, pp 381-390 from Springer

Abstract: Abstract A series of Large Eddy Simulations (LES) of non-reacting flow in a swirl burner has been performed. The configuration consists of two unconfined co-annular jets at a Reynolds number of 81500. The flow is characterized by a Swirl number of 0.93. Two cases are studied differing with respect to the axial location of the inner pilot jet. It was observed in a companion experiment (Bender and Büchner, 2005) [1] that when the inner jet is retracted the flow oscillations are considerably amplified. The present simulations allow to understand this phenomenon: the recirculation zone and the jet interact in such a way that large scale coherent structures are generated. The resulting spectra correspond well to the experimental data.

Keywords: Reynolds Number; Heat Release; Large Eddy Simulation; Navier Stoke Equation; Coherent Structure (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-36183-1_28

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DOI: 10.1007/978-3-540-36183-1_28

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