Using Computing and Modern Measuring Equipment in Undergraduate Fluid Mechanics Experiments

这个项目实施了一个现实的、廉价的计划，在为土木工程本科流体力学实验室课程设计的实验中使用计算和现代测量设备。过去，流体力学的基本概念和重要现象的实验室研究以及实验流体力学和水力学的本科发展一直受到缺乏现代仪器的阻碍。购买了一台用于测量明渠流速的声学多普勒测速仪、一台用于测量管流水头损失的差压传感器，以及两个用于数据采集和显示的基于PC的数据采集系统，这个问题可以得到解决。该装置用于开发六个新的实验(加速场、线动量守恒、水力跳跃、湍流剪应力、管道沿程摩阻损失和数据采集基础)。这些实验有助于更好地理解流体力学原理，并给本科生提供使用现代设备的经验。由于实验设置和程序简单实用，因此可以很容易地在类似机构中进行实验。可以获得测试结果和学生的评价，以评估该项目对本科生学习流体力学原理和现代实验技术的影响。发展计划和成果评估可以通过发表在美国工程教育学会(ASEE)年度会议论文集上发布。实验也可以记录在南达科他州立大学当地出版的《流体力学实验室手册》中。

This project implements a realistic, inexpensive plan for using computing and modern measuring equipment in experiments designed for a civil engineering undergraduate fluid mechanics laboratory course. Previously, the laboratory study of basic concepts and significant phenomena in fluid mechanics and the undergraduate development in experimental fluid mechanics and hydraulics have been hampered by a lack of modern instrumentation. With the purchase of an Acoustic Doppler Velocimeter for measuring flow velocity in open channels, a differential pressure transducer for measuring head loss in pipe flows, and two PC-based data acquisition systems for data collection and display, this problem can be remedied. The equipment is used in developing six new experiments (acceleration field, conservation of linear momentum, hydraulic jump, turbulent shear stress, friction loss along a pipe, and fundamentals of data acquisition). These experiments allow for a better understanding of fluid mechanics principles and give undergraduates experience with modern equipment. Because the experimental setup and procedures are simple and practical, experiments may be readily adapted at similar institutions. Test results and students' evaluations can be obtained to assess the impact of this project on undergraduate learning of fluid mechanics principles and modern laboratory techniques. The development plan and the outcome assessment can be disseminated through publication in the American Society for Engineering Education (ASEE) Annual Conference Proceedings. Experiments can also be documented in a Fluid Mechanics Laboratory Manual to be published locally at South Dakota State University.