Numerical simulation of unsteady planar ammonium perchlorate flames including detailed gas phase chemistry and fluid-structure interaction

A one-dimensional unsteady combustion model is presented for ammonium perchlorate flames taking into account a detailed gas phase chemistry with 36 species and 216 reactions, a fully-coupled fluid-structure interaction and allowing for acoustic and elastic waves propagation. The model is used to calculate a wave propagating from the gas phase into the solid phase and reflected by the interface. The interface temporal response shows a linear behavior for the test case of interest in this article.