Abstract
The chapter studies the process of propagation of a combustion wave along the charge of a heterogeneous explosive. Black gunpowder is considered as an explosive. The mathematical model is based on the Baer-Nunziato two-fluid system of equations and takes into account such physical processes as interphase exchange of mass, momentum, and energy. The numerical flux in the finite-volume computational algorithm is calculated using the Harten-Lax-van Leer scheme. Simulation results are compared with the reference calculated data obtained by other authors. The pressure curves on sensors located at several points along the channel are in good agreement. The calculation confirms the decisive role of the compaction process on the nature of the combustion wave propagation.
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The work was carried out under the state task of the ICAD RAS.
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Chuprov, P.A. (2022). Numerical Simulation of Combustion Wave Propagation in a Black Powder Charge Using a Two-Fluid Model. In: Favorskaya, M.N., Nikitin, I.S., Severina, N.S. (eds) Advances in Theory and Practice of Computational Mechanics. Smart Innovation, Systems and Technologies, vol 274. Springer, Singapore. https://doi.org/10.1007/978-981-16-8926-0_12
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