摘要
本文对火箭水下直接点火发射过程中 ,喷管内高温燃气的推进和气囊的形成、发展等流动演变过程提出了一类简化的模型 ,并进行了非定常粘性可压缩流 Navier- Stokes方程的数值模拟。计算结果表明了简化模型的合理性 。
In this paper a simple model is proposed to study the propulsion process of the hyperthermal gases in nozzle and the formation and evolution of the gas zone in water.The compressible Navier Stokes equations are also numerically solved using finite difference method.Our calculated results have verified that the simple model is reasonable to predict approximately the complex flowfield of the rocket launch under water.
出处
《宇航学报》
EI
CSCD
北大核心
2000年第2期1-7,共7页
Journal of Astronautics
基金
国家自然科学基金 !( 1 98892 1 0 )
航天工业总公司三院三部资助
