Geodesic
Numerical simulation of intra-chamber processes in a solid rocket motor with account for burning surface motion
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 71 (2021), pp. 90-105 Cet article a éte moissonné depuis la source Math-Net.Ru

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The axisymmetric solid rocket motor (SRM) with an “umbrella” shape is considered in this paper. The numerical algorithm based on the inverse Lax-Wendroff procedure for a gas dynamic equation and on the level-set method for tracking the burning surface is overviewed for internal ballistics problems. Assuming that the propellant combustion proceeds in a quasi-stationary regime and a mass flow from the burning surface depends on the pressure raised to the power of parameter v, the numerical computations of intra-chamber combustion product flows during the main-firing phase are carried out using the numerical algorithm developed for “umbrella”-shaped SRM at different parameter values. The approximation convergence of flow parameters in a case of the stationary propellant surface and average intra-chamber pressure for all the time of motor operation is examined. The numerical simulation results are obtained and analyzed for different “umbrella” inclination angles. Though the developed algorithm has been applied to the motors with a specific shape, it can also be used for propellant grains of different shapes and is easily extended to 3D models.
Keywords: solid rocket motor, level-set method, inverse Lax-Wendroff procedure, numerical simulation, internal ballistics, gas dynamics. 
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     author = {A. E. Kiryushkin and L. L. Minkov},
     title = {Numerical simulation of intra-chamber processes in a solid rocket motor with account for burning surface motion},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {90--105},
     year = {2021},
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A. E. Kiryushkin; L. L. Minkov. Numerical simulation of intra-chamber processes in a solid rocket motor with account for burning surface motion. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 71 (2021), pp. 90-105. http://geodesic.mathdoc.fr/item/VTGU_2021_71_a7/

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