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September 10, 2025Physics of Fluids

Impact of mixed charge uniformity and particle size distribution on interior ballistic performance: A study based on the multiple particle element method

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An increase in web thickness prolongs burning times and affects pressure within the combustion chamber.
Results show the multiple particle element method aligns closely with experimental data, with deviations under 1%.
Wider standard deviation of mixing uniformity leads to broader pressure and velocity distribution ranges.
Velocity variability shows a decelerating trend, while pressure variability exhibits an accelerating trend.

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Observational analysis reveals how mixed charge properties impact internal ballistic performance, suggesting improvements in propellant efficiency.

Cheng et al. (2025) studied this question.

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Observational analysis reveals how mixed charge properties impact internal ballistic performance, suggesting improvements in propellant efficiency.