Document Type : Research Paper

Authors

1 Department of Mechanical Engineering, Faculty of Mechanical Engineering, Arak University, Arak, Iran

2 Department of Aerospace Engineering, Faculty of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

3 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

Abstract

In this research, the 3D grain burnback with quasi-one-dimensional internal ballistic in a solid rocket motor is simulated using the Level set theory and the utilization of Sections method, while achieving high accuracy in the simulation of green's post-back analysis time can also be significantly reduced. By using Section method, 3D grains are divided to many 2D grain, then 2D Level set is utilized to analyse grain burnback. Finally, the burning port of 3D grains are calculated by means of Interpolation. Also, to predict the internal pressure of the motor and the burning rate, a numerical code is written and coupled with grain burnback programme.

Keywords

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