Acquisition of a PIV system for quantifying geophysical flows

获取用于量化地球物理流的 PIV 系统

• 批准号: 0549607
• 负责人: Sean Bennett
• 金额: $ 23.89万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-12-01 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0549607&HistoricalAwards=false
• 关键词: Acquisition; PIV; system; quantifying; geophysical

0549607BennettThis grant supports acquisition of a Stereoscopic Particle Image Velocimeter (PIV), capable of resolving 2-D and 3-D vector fields of turbulent and laminar geophysical fluid flows. The requested PIV would have sample rates in excess of 500 Hz with a field of view over areas larger than 0.3 x 0.3 m and image analysis resolution at 1.3 Megapixel resolution for both clear-water and dilute sediment-laden flows. The requested PIV would support research on riverine, upland stream and estuarine fluid dynamics and sediment transport and bedform growth processes by faculty and students at SUNY at Buffalo. Studies of mass transport in open channel flows, the dynamics of headcut erosion in upland streams, the interactions between turbulent flows and bedform stability, sediment transport processes during flood events and analog studies of volcanic tephra dispersal processes will immediately benefit from the PIV. The instrument will foster hands-on student research experiences in laboratory investigations of geophysical fluid dynamics and the research facilitated by the instrument has implications for civil engineering and hazards mitigation.***

0549607Bennett 这项拨款支持购买立体粒子图像测速仪 (PIV)，能够解析湍流和层流地球物理流体流的 2-D 和 3-D 矢量场。 所要求的 PIV 采样率超过 500 Hz，视野大于 0.3 x 0.3 m，图像分析分辨率为 1.3 兆像素，适用于清水流和稀泥沙流。所请求的 PIV 将支持纽约州立大学布法罗分校的教职员工和学生对河流、高地河流和河口流体动力学以及沉积物输送和河床生长过程的研究。 明渠水流中的质量输运研究、高地溪流中的切头侵蚀动力学、湍流与河床稳定性之间的相互作用、洪水事件期间的沉积物输运过程以及火山碎屑扩散过程的模拟研究将立即受益于 PIV。 该仪器将培养学生在地球物理流体动力学实验室研究中的实践研究经验，并且该仪器促进的研究对土木工程和减灾具有影响。***