...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow >Dual-plane stereo particle image velocimetry (DSPIV) for measuring velocity gradient fields at intermediate and small scales of turbulent flows
【24h】

Dual-plane stereo particle image velocimetry (DSPIV) for measuring velocity gradient fields at intermediate and small scales of turbulent flows

机译：双平面立体粒子图像测速仪（DSPIV）用于测量中小尺度湍流的速度梯度场

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A two-frequency dual-plane stereo particle image velocimetry (DSPIV) technique is described for highly resolved measurements of the complete nine-component velocity gradient tensor field partial derivativeu(i)/partial derivativex(j) on the quasi- universal intermediate and small scales of turbulent flows. The method is based on two simultaneous, independent stereo particle image velocimetry (PIV) measurements in two differentially spaced light sheet planes, with light sheet characterization measurements demonstrating the required sheet thicknesses, separation, and two-axis parallelism that determine the measurement resolution and accuracy. The present approach uses an asymmetric forward-forward scatter configuration with two different laser frequencies in conjunction with filters to separate the scattered light onto the individual stereo camera pairs, allowing solid metal oxide particles to be used as seed particles to permit measurements in nonreacting as well as exothermic reacting turbulent flows.
机译：描述了一种两频双平面立体粒子图像测速（DSPIV）技术，用于在准通用中间和小范围内对完整的九分量速度梯度张量场的偏导数u（i）/偏导数x（j）进行高分辨率测量湍流的尺度。该方法基于在两个不同间隔的光板平面上同时进行的两个独立的立体粒子图像测速（PIV）测量，光板特征测量表明所需的板厚，分离度和两轴平行度决定了测量分辨率和精度。本方法使用具有两个不同激光频率的非对称前向散射配置以及滤光片，将散射光分离到各个立体相机对上，从而允许将固体金属氧化物颗粒用作种子颗粒，从而也可以进行非反应性测量作为放热反应的湍流。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号