Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/27877
Title: Simulation of a turbulent premixed open V-shaped flame using contour advection with surgery
Authors: Tang, BHY
Chan, CK 
Lam, JSL
Keywords: Burning rate
Contour advection with surgery
Flame surface density
V-shaped flame
Issue Date: 2006
Publisher: Elsevier
Source: Applied mathematical modelling, 2006, v. 30, no. 10, p. 1103-1117 How to cite?
Journal: Applied mathematical modelling 
Abstract: Despite its capability of high spatial resolution, simulation of turbulent flows with traditional Lagrangian (front tracking) scheme is often discouraged by numerical instability caused by clustering of marker nodes and topological changes of fronts. Contour advection surgery (CAS), being a robust front tracking scheme, can limit the growth of front complexity during simulation without jeopardizing accuracy or efficiency. This allows it to open up an advantage over traditional front-tracking schemes. It has already been demonstrated that CAS, with incorporation of the reaction sheet model, can accurately simulate the propagation and advection of a turbulent premixed V-shaped flame. In this study, it is further tested with 10 values of vortex circulation. A range of upstream turbulence levels of 1.8-19.8% was obtained. Results indicate that upstream turbulence increase the average flame length, flame zone area and the overall burning rate. Flame surface density Σ was also estimated. Maximum values of Σ obtained lie in the range 0.1-1.4 mm-1. Skewness towards the burnt region was observed in all profiles of Σ. Similar to results from laboratory experiments, it was found that Σ values decreases with upstream turbulence. From this study, the ability of CAS to cope with intense turbulence is demonstrated and a better quantitative understanding on the scheme has also been acquired.
URI: http://hdl.handle.net/10397/27877
ISSN: 0307-904X
DOI: 10.1016/j.apm.2005.08.016
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