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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/6044

Title: Large eddy simulation of turbulent non-premixed swirling flames
Authors: Dinesh, K.K.J.R.
Malalasekera, W.
Ibrahim, Salah S.
Kirkpatrick, M.P.
Issue Date: 2006
Publisher: © Begell House
Citation: DINESH, K.K.J.R.....et al., 2006. Large eddy simulation of turbulent non-premixed swirling flames. IN: Hanjalic, K., Nagano, Y. and Jakirlic, S. (eds.), Proceeding of The International Symposium on Turbulence, Heat and Mass Transfer, Dubrovnik, Croatia, Sept. 25th-29th, pp. 593-596
Abstract: In this study Large Eddy Simulation (LES) technique has been applied to predict a selected swirling flame based on the Sydney swirl burner. The predicted flame is known as SMH1 having a swirl number of 0.32 and fuel of CH4:H2 (50:50) by volume. In the numerical method, the governing equations for mass, momentum and mixture fraction are solved on a structured Cartesian grid with 1 million cells. Smagorinsky eddy viscosity model with localized dynamic procedure is used as the sub-grid scale turbulence model. The conserved scalar mixture fraction based thermo-chemical variables are described using a steady laminar flamelet model. With appropriate inflow, outflow boundary conditions and relatively fine grid resolutions, LES predicts the upstream recirculation zone and key flow features. The predictions show good agreement with experimental measurements for the velocity field. Some discrepancies in mixture fraction predictions were observed. Predicted mean temperature and species concentrations also show reasonably good agreement with experimental measurements.
Description: This article is closed access. The conference proceedings are available from Begell House: http://begellhouse.eu/references/1bb331655c289a0a,4a93e7ca5fe696c8,72b1d7002c12699d.html
Version: Closed access
URI: https://dspace.lboro.ac.uk/2134/6044
ISBN: 9619139305
Appears in Collections:Closed Access (Mechanical and Manufacturing Engineering)

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