层析PIV用于流体三维测量评述

2012/07/16   下载量： 13 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

The Tomographic-PIV measurement system performances are experimentally assessed within the present study. The technique is applied to the turbulent air flow past circular cylinders in two configurations, namely the thin light sheet and the thick light sheet. In the first case the Tomo-PIV measurements are compared with stereoscopic PIV, which is assumed as a reference result. Image signal conditioning by pre-processing seems to be essential in order to achieve an accurate particle field reconstruction in presence of background light and electronic noise. The comparison shows that the two techniques are basically equivalent in the thin light sheet configuration. The 3D measurements are performed with the thick light sheet technique where the instantaneous velocity vector distribution is measured over a domain of 31x26x10 mm3 yielding 28x24x5 velocity vectors. The vortex wake past a circular section cylinder is visualized within the volume snapshots and the time-averaged flow representation shows a consistent flow pattern with respect to the geometric boundary conditions with the separated shear layers aligned along the cylinder axis.

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 层析粒子成像测速

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 层析PIV用于流体三维测量评述

关注

拨打电话

留言咨询