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|Title: ||Large eddy simulation of turbulent non-premixed swirling flames|
|Authors: ||Ranga-Dinesh, K.K.J.|
Ibrahim, Salah S.
|Issue Date: ||2006|
|Publisher: ||© Begell House|
|Citation: ||RANGA DINESH, K.K.J. ...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
|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|
|Appears in Collections:||Closed Access (Mechanical and Manufacturing Engineering)|
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