冲击激波碰撞影响下的横向喷射-腔体相互作用

2017/07/19   下载量： 3 次

方案摘要

方案下载
应用领域 航空航天
检测样本 航空
检测项目
参考标准 暂无

采用LaVision公司的粒子成像测速系统，对冲击激波碰撞影响下的横向喷射-腔体相互作用进行了研究。测试系统包括一台200毫焦的双脉冲激光器和IagerProX型CCD相机。

方案下载
配置单
方案详情

For high-speed air breathing engines, fuel injection and subsequent mixing with air is paramount
for combustion. The high freestream velocity poses a great challenge to ecient mixing both in
macroscale and microscale. Utilising cavities downstream of fuel injection locations, as a means to
hold the
ow and stabilise the combustion, is one mechanism which has attracted much attention,
requiring further research to study the unsteady
ow features and interactions occurring within
the cavity. In this study we combine the transverse jet injection upstream of a cavity with an
impinging shock to see how this interaction in
uences the cavity
ow, since impinging shocks have
been shown to enhance mixing of transverse jets. Utilising qualitative and quantitative methods:
schlieren, oil
ow, PIV, and PSP the induced
ow eld is analysed. The impinging shock lifts the
shear layer over the cavity and combined with the instabilities generated by the transverse jet
creates a highly complicated
ow eld with numerous vertical structures. The interaction between
the oblique shock and the jet leads to a relatively uniform velocity distribution within the cavity.

上一篇 在一个双稳湍流涡旋火焰中，对间歇性动态的时间-频率定位
下一篇 一种高效精确的MTE-MART算法用于时间分辨层析PIV测量和分析

文献贡献者

北京欧兰科技发展有限公司
金牌会员 丨 第17年
查看全部资料
相关仪器 更多
相关方案
更多

相关产品

当前位置： 欧兰科技 方案 冲击激波碰撞影响下的横向喷射-腔体相互作用

关注

拨打电话

留言咨询