Abstract
A novel interior ballistic model was established by revising actual combustion characteristics describing the relationship between burned propellants (ψ) and pressure impulse (It). The discrepancy between theory and experiment for gas releasing of porous propellant was investigated. Furthermore, the model was tested for multiperforated propellants, with relative errors less than 1 and 3% for the maximum pressure and velocity, respectively, indicating that this is a good model to estimate the interior ballistics performance for multiperforated propellants.
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