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<p>A numerical simulation of the unsteady processes of combustion of charges and of the flow of combustion products in a double-ended T-burner has been performed with the use of models of nonstationary combustion of a metallized solid rocket propellant and of the gas dynamics of the flow of the two-phase combustion products in the burner, and the damping of the acoustic vibrations in burner was calculated. Results of calculation of the acoustic admittance of the burning surface of a model metallized solid rocket propellant are presented. The calculated dependences of the acoustic admittance of the burning surface of the model metallized solid propellant on the mass content of the aluminum powder in it and on the size distribution of particles in its combustion products agree qualitatively with the corresponding experimental data presented in the scientific literature.</p>

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Simulation of the Combustion of a Metallized Solid Propellant in a T-Burner and Calculation of the Acoustic Admittance of the Propellant Combustion Surface

  • 期刊论文

  • 发表日期：

    2026年6月29日

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  • A. Yu. Krainov

摘要

A numerical simulation of the unsteady processes of combustion of charges and of the flow of combustion products in a double-ended T-burner has been performed with the use of models of nonstationary combustion of a metallized solid rocket propellant and of the gas dynamics of the flow of the two-phase combustion products in the burner, and the damping of the acoustic vibrations in burner was calculated. Results of calculation of the acoustic admittance of the burning surface of a model metallized solid rocket propellant are presented. The calculated dependences of the acoustic admittance of the burning surface of the model metallized solid propellant on the mass content of the aluminum powder in it and on the size distribution of particles in its combustion products agree qualitatively with the corresponding experimental data presented in the scientific literature.