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| Improvement in Time Efficiency in Numerical Simulationfor Solid Propellant Rocket Motors （SPRM） |
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Valeriy BUCHARSKYI1,ZHANG Li-hui2,WAN Yi-lun2
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（1. Propulsion System Design Dept，Dnipro National University，Dnipro 49000，Ukraine;2. School of Astronautics，Beihang University，Beijing 100191，China）
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| Abstract: |
| The main purpose of the present work is to study the possibilities of reducing calculation time while maintaining the validity in the numerical simulation of the combustion product flow in SPRM chamber. Three ways of decreasing the calculation time-the use of numerical methods of high accuracy order， the reduction in spatial dimension of the problem， and the use of physical features of the processes in SPRM chamber while constructing a calculation model-were considered. Presented calculation data show that the use of these approaches makes it possible to reduce the time for solving the problems of SPRM simulation significantly (up to 100 times). Also conclusions about the applicability of the mentioned above approaches in SPRM design were made. |
| Key words: Numerical simulation Solid propellant rocket motor Calculation time reduction |
