| 赵坤1，2，何立明1，曾昊1，赵晨瑞3，王浩2，张伟东2，陈月2.导流角和凹面腔深度对2 级PDE 中激波聚焦的影响[J].航空发动机,2018,44(4):16-20 |
| 导流角和凹面腔深度对2 级PDE 中激波聚焦的影响 |
| Effect of Diversion Angle and Concave Cavity Depth on Shock Wave Focusing in 2-Stage PDE |
| |
| DOI： |
| 中文关键词: 2 级脉冲爆震发动机 激波聚焦 导流角 凹面腔深度 数值模拟 |
| 英文关键词:two-stage pulse detonation engine shock wave focusing diversion angle concave cavity depth numerical simulation |
| 基金项目:国家自然科学基金（91541109、51406234）资助 |
|
| 摘要点击次数: 1132 |
| 全文下载次数: 772 |
| 中文摘要: |
| 为了研究凹面腔内激波聚焦的机理以及导流角和凹面腔深度对激波聚焦的影响，在不同导流角和凹面腔深度条件下开
展了3 维凹面腔内激波聚焦的数值模拟，对各测量点的压力和温度进行分析。结果表明：合适的导流角有利于激波聚焦，导流角为
25°时凹面腔底部的峰值压力和温度最高，激波聚焦效果最好；合适的凹面腔深度有利于激波聚焦，凹面腔深度为25 mm 时凹面腔
底部的峰值压力和温度最高，激波聚焦效果最好 |
| 英文摘要: |
| In order to research the mechanism of shock wave focusing in concave cavity and the influence of diversion angle and
concave cavity depth on shock wave focusing，the numerical simulation of shock wave focusing in 3D concave cavity was carried out under
the condition of different diversion angle and concave cavity depth. The pressure and temperature of each measuring point were analyzed.
The results show that the proper angle of diversion is favorable for shock wave focusingand the peak pressure and temperature at the
bottom of concave cavity are the highest when the diversion angle is 25°，and the effect of shock wave focusing is the best；The proper depth
of the concave cavity is favorable for shock wave focusing，and the peak pressure and the temperature at the bottom of the concave cavity are
the highest when the concave cavity depth is 25 mm，and the effect of shock wave focusing is the best. |
| 查看全文 查看/发表评论 下载PDF阅读器 |