Numerical Evaluation of the Effects of Inclusions on Solid Rocket Motor Performance

This work describes the application of original computer graphics methods to examine the effect of inclusions within the solid rocket motor thrust chamber. The adoptance of a dynamic three-dimensional triangular mesh with a self-intersection removal algorithm, as the core of the burning surface regression module, allows the aforementioned target to be reached. Many phenomena not measurable in an analytical closed form, like different-shaped voids within the grain, can be investigated. Indeed, both local heterogeneities and surface imperfections could generate unexpected variations in the combustion chamber pressure pattern and early thermal protections exposure. The aforementioned techniques are developed and tested on a ballistic simulator developed using computer graphics methods to improve mesh handling. Simulation results are carried out and discussed.