MRI-R2: Acquisition of a Volumetric 3-Component Velocimetry (V3V) System

MRI-R2：体积三分量测速 (V3V) 系统的采集

• 批准号: 0958668
• 负责人: Amy Lang
• 金额: $ 50.17万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-15 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0958668&HistoricalAwards=false
• 关键词: MRI; R2; Acquisition; Volumetric; Component

0958668Lang"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." A team of five faculty actively engaged in fluid dynamics research from the College of Engineering at the University of Alabama (UA) proposes to acquire a TSI V3V measurement system. The V3V system is unique, compared to planar two-dimensional and even stereoscopic particle image velocimetry (PIV) systems, because it is capable of measuring the instantaneous three-component velocity vector field within an entire fluid volume. The instrument uses a system of three cameras to track the three-dimensional coordinates of individual particles; the data are then interpolated onto a regularly spaced Cartesian grid. As a result, other three-dimensional flow properties (such as vorticity, local strain rates, and Reynolds stresses) are easily calculated from the measurements. The major advantage of the system is its ability to fully capture the velocity field spatio-temporally while only requiring limited optical access as compared to planar DPIV, thus allowing for greater insight into the flow physics for the proposed studies. UA would be the first university in the Southeast to purchase this state-of-the-art system and would become one of less than ten in the country to acquire one. The acquisition of the V3V will enable the faculty team, which has combined experience of 23 years using planar PIV systems, about 60 years with laser-based techniques, and over 80 years with optical measurement techniques, to form a new, active working group that focuses on optical diagnostic techniques in experimental fluids, aerodynamics, combustion and engines (eFACE Working Group). The V3V will provide the infrastructure cornerstone of the newly formed working collaboration.

0958668lang“该奖项是根据2009年《美国复苏与再投资法》（公法111-5）资助的。”由阿拉巴马大学工程学院（UA）的五个教师组成的团队积极从事流体动力学研究，建议购买TSI V3V测量系统。 V3V系统是独一无二的，与平面二维甚至立体粒子图像速度（PIV）系统相比，因为它能够在整个流体体积中测量瞬时三组分速度矢量场。该仪器使用三个相机的系统来跟踪单个颗粒的三维坐标。然后将数据插值到常规间隔的笛卡尔网格上。结果，其他三维流动特性（例如涡度，局部应变率和雷诺应力）很容易根据测量值计算。该系统的主要优点是它能够完全捕获速度场时空时空，而与平面DPIV相比，仅需要有限的光学访问，从而可以更深入地了解拟议研究的流动物理学。 UA将是东南部第一所购买此最先进系统的大学，并将成为该国不到十的大学之一。对V3V的获取将使教师团队能够使用Planar PIV系统的23年经验，使用基于激光的技术约60年，并使用80年的超过80年的光学测量技术组成了一个新的，活跃的工作组，该小组重点介绍了一个在实验流体，空气动力学，组合，构造，锻炼和互联网（Eface）（e Faceface and Face Face）中的光学诊断技术。 V3V将为新成立的工作协作提供基础设施基石。