FEM-simulation of laminar flame propagation. I: Two-dimensional flames
Abstract
In this paper, we present a numerical model for two-dimensional low-Mach-number flows of reactive ideal-gas mixtures based on the fundamental conservation equations in primitive variables. Chemical reaction is described by a detailed mechanism of elementary reactions, and detailed models for molecular transport and thermodynamics are taken into account. The equations are discretized by a finite-element method on unstructured grids using the well known Taylor-Hood element. A streamline-diffusion upwinding technique is used to avoid instabilities in convection-dominated regions of the flowfield. A fully operative local adaptive mesh-refinement procedure is used. As numerical examples we consider steadily propagating laminar flames in flat channels, which appear in a variety of shapes depending on the boundary conditions.
- Publication:
-
Journal of Computational Physics
- Pub Date:
- May 2004
- DOI:
- 10.1016/j.jcp.2003.10.033
- Bibcode:
- 2004JCoPh.196..417M
- Keywords:
-
- 02.70.DL;
- 82.40.Py;
- Low