Numerical Simulation of two-Phase Flow Modling of Solid Propellant Combustion

Numerical Simulation of two-Phase Flow Modling of Solid Propellant Combustion

Mahmoud Rashad XaioBing Zhang

School of Energy and Power Engineering, Nanjing University of Science and Technology

Corresponding Author Email:;
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31 December 2014
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Up to date munitions developments are the leading stimulus to go through realistic investigations for the complex phenomenon occurs during interior ballistic cycle. Fast and accurate model is required to assure firing safety and performance of the guided projectile. In this paper, based on two-fluid model approach; a reactive two-phase flow model for the combustion process of solid granular propellant is developed. The model includes the governing equations of mass, momentum and energy for both phases as well as the constitutive laws. An accurate second order numerical technique is utilized to solve the system of equations. Sod shock tube problem is utilized to test the ability of the used numerical algorithm in solving the initial boundary value problem for the system of equations with shock wave behavior. The results of the numerical method are compared to the exact solution of a test problem for verification. The moving control volume conservation method is used to handle the moving boundary as well as a self-adapting grid algorithm is used to expand the computational domain to deal with the projectile motion. Simulation results are validated with an experimental data for validation. The interior ballistics performance is closely predicted using the developed model and the numerical code.

1. Introduction
2. Theoretical Model
3. Numerical Approach
4. Results and Discussion
5. Conclusions

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