弹道学报2016，Vol.28Issue(1)：19-25,32,8.
侧喷管脉冲发动机内流场数值模拟
Numerical Analysis of Internal Flow Field in Side Nozzle Pulse Motor
摘要
Abstract
Side-nozzle pulse motors as the executive mechanisms of guided ammunition’s thrust vector control system are smart solid propellant rocket motor. To study the characteristics of motors, fluid calculation software was deployed to carry out simulation analysis on the 3D internal flow field. The effects of the eccentric distance of eccentric segment,the height between nozzle and the eccentric segment and the length of eccentric segment on the flow field structure and performance of engine were studied. Results show that the radial thrust decreases with the increase of the eccentric distance of eccentric segment,and the center of the radial thrust moves from the inside to the outside of the nozzle;the radial thrust increases first and then decreases with the increase of the height between nozzle and the eccentric segment,and the center of radial thrust varies sharply;due to the limitations of engine structure,the length of the eccentric section has less effect on the engine. The methods used can be used to simulate the integrated flow field and estimate the performance of engine.关键词
侧喷管脉冲发动机/内流场/发动机性能/数值模拟Key words
side nozzle pulse motors/internal flow field/engine performance/numerical simulation分类
航空航天引用本文复制引用
吴佳男,余陵,蔡文祥..侧喷管脉冲发动机内流场数值模拟[J].弹道学报,2016,28(1):19-25,32,8.基金项目
国家自然科学基金项目(51306092) （51306092）
