Numerical simulation of flow field characteristics in two-modular charge chamber

Tianyi Ma; Ruyi Tao; Hao Wang

doi:10.1117/12.3033884

5 July 2024 Numerical simulation of flow field characteristics in two-modular charge chamber

Tianyi Ma, Ruyi Tao, Hao Wang

Proceedings Volume 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024); 131830U (2024) https://doi.org/10.1117/12.3033884
Event: The 3rd International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 2024, Wuhan, China

Abstract

The Modular Artillery Charge System (MACS) is a key charge structure used in large-caliber howitzers. To investigate the combustion characteristics in the chamber of the two-modular charge, a combustion simulation experiment was conducted using the MACS combustion experiment platform. A two-dimensional, axisymmetric, two-phase flow interior ballistic model of the modular charge was established based on the charging structure of the two-modular charge. The ignition process of the two-modular charging chamber was numerically simulated using the high-order precision Monotonic Upstream-centered Scheme for Conservation Laws. The calculated results were compared to experimental results, yielding an average error of 2.84% and a peak error of just 2.17%. These findings indicate that the mathematical model and calculation method accurately describe the combustion process of the two-modular charge chamber. Additionally, the results demonstrate that the modular cartridge has a limited impact on the dispersion of powder particles, allowing for more complete powder burn. The temperature field diffuses radially and axially from the ignition hole, with an obvious gradient distribution at the edge of the temperature field. The pressure inside the chamber increases rapidly during combustion, peaking near the end of the burning phase and gradually decreasing afterwards. These simulation results provide valuable insights into the combustion characteristics of the two-modular charge chamber, aiding in the optimization of large-caliber howitzer designs and enhancing their performance.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tianyi Ma, Ruyi Tao, and Hao Wang "Numerical simulation of flow field characteristics in two-modular charge chamber", Proc. SPIE 13183, International Conference on Optoelectronic Information and Functional Materials (OIFM 2024), 131830U (5 July 2024); https://doi.org/10.1117/12.3033884

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KEYWORDS

Combustion

Particles

Porosity

Solids

Numerical simulations

Free space

Mathematical modeling

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