Deleted DOI: Transient Burning Rate Model for Solid Rocket Motor Internal Ballistic Simulations

A general numerical model based on the Zeldovich-Novozhilov solid-phase energy conservation result for unsteady solidpropellant burning is presented in this paper. Unlike past models, the integrated temperature distribution in the solid phase is utilized directly for estimating instantaneous burning rate (rather than the thermal gradient at the burning surface). The burning model is general in the sense that the model may be incorporated for various propellant burning-rate mechanisms. Given the availability of pressure-related experimental data in the open literature, varying static pressure is the principal mechanism of interest in this study. The example predicted results presented in this paper are to a substantial extent consistent with the corresponding experimental firing response data.

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