Development of a Full-Field Vorticity Measurement Technique for 3-D Unsteady Flows

3-D 非定常流全场涡度测量技术的开发

• 批准号: 8813388
• 负责人: Sumon Sinha
• 金额: --
• 依托单位: Florida International University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-06-01 至 1989-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813388&HistoricalAwards=false
• 关键词: Development; Full; Field; Vorticity; Measurement

This research will demonstrate the capability of a stereoscopic, two- camera system for tracking laser-illuminated particles to produce unsteady, three-dimensional vorticity maps in complex flows. The technique depends on utilization of a finite thickness two- dimensional sheet of laser illumination. If successful, this non- intrusive, three-dimensional diagnostic technique would be widely applicable in experimentally determining complex velocity and vorticity fields. Among other uses, this information is crucial in evaluating current numerical computation schemes.

这项研究将展示一种立体的、双摄像机系统跟踪激光照射的粒子的能力，以在复杂的流动中产生非稳定的三维涡量图。这项技术依赖于有限厚度的二维激光照明片的使用。如果成功，这种非侵入性的三维诊断技术将广泛应用于实验确定复杂的速度和涡量场。在其他用途中，这些信息在评估当前的数值计算方案时至关重要。