内部流动条件对狭缝喷嘴产生的片状液体形态稳定性的影响:实验结果

2013/05/04   下载量： 5 次

方案摘要

方案下载
应用领域 其他
检测样本 其他
检测项目
参考标准 暂无

This work focuses on the interconnection of internal flow field and liquid sheet stability of slit nozzles. The main issue was to supplement the existing experimental data with particle image velocimetry (PIV) experiments on the inner flow field of three different nozzle designs and visualization of the sheet modulation and breakup at Reynolds numbers about Re=19000. The main difference of these nozzles was the channel length. Like in former investigations, the dominating influence of the internal flow conditions on the film stability became obvious. The results support the conclusion that a certain amount of turbulence stabilizes the liquid film, as stated by [2]. The use of a double pulse technique for backlit photography of the free liquid film gave the opportunity to determine the velocity of the surface deformations near the nozzle exit. This in combination with the knowledge about the internal flow field allowed drawing conclusions about the energy transfer between core flow and free liquid surface at the nozzle exit. It is suggested that this energy transfer plays an important roll in the promotion of disturbances and surface deformation and therefore has an essential influence on the liquid sheet stability.

方案下载
配置单
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 基于时间分辨PIV的柱状翼型噪声的气动声学研究

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 内部流动条件对狭缝喷嘴产生的片状液体形态稳定性的影响:实验结果

关注

拨打电话

留言咨询