Numerical validation study of a 1D strain model for iron dust flames

In this work, multi-dimensional effects in iron dust counterflow flames are studied numerically. This is done by comparing 2D simulations to one-dimensional (1D) simulations. The results show that the 1D approach aligns well with the 2D model in terms of qualitative behavior of the flame structures. Quantitatively, there are some deviations, attributable to the constant pressure curvature assumption used in the 1D model. Especially, to correctly capture the strain rate profile and the location of the stagnation plane, the predictable capabilities of the 1D model are not as good as the 2D approach. Furthermore, geometric effects are studied by comparing a 1D planar configuration to a 1D axisymmetric configuration, where minimal effects are observed.