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拖曳水池,船舶模型中速度矢量场,速度场检测产品配置单(粒子图像测速)

  • 应用领域: 铁路/船舶/交通
  • 检测样品: 拖曳水池,船舶模型
  • 检测项目:速度矢量场,速度场
  • 浏览次数:690 次
  • 下载次数:50 次
  • 发布时间:2008-06-16
  • 参考标准:暂无
In January 2004, Memorial University purchased a stereoscopic Particle Image Velocimetry (PIV) system for making flow measurements. Although the system was potentially very versatile, its primary application was envisioned to be in a towing tank. The system was supplied as a complete package of hardware and software for calibration, data collection and analysis. The intention of the PIV system designers was to collect as many data frames as possible for a fixed measurement plane location, relative to the model. This required the PIV system to be fixed on the towing carriage, moving with the model being studied. It was found during some preliminary experiments that an active seeding delivery system was necessary to ensure sufficiently high seeding particle concentration, especially when measuring flow velocities around a model hull with a large yaw angle. This paper describes the development of a seeding technique for a PIV system that can be used in a towing tank. The paper also includes an estimate of the uncertainty of the measurement system, including the analysis of the flow behind the device used to deliver seed particles into the flow.
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