RUI: Undergraduate Research in Musical Acoustics

RUI：音乐声学本科生研究

基本信息

批准号：
2109932
负责人：
Whitney Coyle
金额：
$ 39.13万
依托单位：
Rollins College
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-06-01 至 2025-05-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2109932&HistoricalAwards=false
关键词：
RUI Undergraduate Research Musical Acoustics

项目摘要

The primary goal of the work is to involve undergraduate students in original scientific research and introduce them to the excitement and challenge that a profession in the sciences offers. The research encompasses a study that will lead to an understanding of the airflow in resonating pipes of different geometries. The emphasis is on understanding the flow through pipes with different shapes coupled to oscillations caused by an air jet interacting with a sharp edge. The system used to study this interaction will be the organ pipe. However, the results can be used to understand the many scientific and industrial situations that involve oscillating or flowing air contained within a metal or wooden duct. As part of the work, a method for optically imaging gas and fluid flow over a large area will be developed and optimized for imaging airflow at room temperature. Additionally, a computer simulation will be developed and validated with the experimental results so that the effects of changing the physical parameters of the pipe can be investigated theoretically. A significant effort will be made to recruit women students to participate in enhancing the participation of women pursuing scientific research as a career.The work involves collaborating with undergraduate students to understand the physics of airflow in flue organ pipes and recorders. The primary goal is to involve undergraduate students in original scientific research and introduce them to the excitement and challenge that will result in a life dedicated to scientific pursuits. The scientific goal is to understand the airflow in pipes of different geometries coupled to oscillations driven by a jet-edge interaction. Of particular interest are the differences in oscillating and steady-state flows with low Reynolds numbers propagating through circular and rectangular pipes. This type of system is found in fipple musical instruments such as flue organ pipes and recorders and many industrial situations. Transmission electronic speckle pattern interferometry will be used to obtain high-speed imagery of airflow through circular and rectangular transparent pipes of equal cross-sectional area produced by 3-D printing. The imagery will be coupled with pressure and flow velocity measurements to understand why the flow through rectangular organ pipes appears to differ from the flow-through cylindrical organ pipes. The experimental results will be used to validate a computer simulation, which will then be used to investigate the influence of other physical parameters on the flow through the oscillator-resonator system. The results will lead to a better understanding of the effects of the pipe shape on acoustics and fluid flow in resonators coupled to flow-driven oscillations.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这项工作的主要目标是让本科生参与原始的科学研究，并向他们介绍科学专业提供的兴奋和挑战。该研究涵盖了一项研究，该研究将导致对不同几何形状的谐振管道的气流了解。重点是理解通过管道的流动流动，其形状不同，与空气射流与锋利的边缘相互作用引起的振荡。用于研究这种相互作用的系统将是器官管道。但是，结果可用于了解涉及金属或木制管中振荡或流动空气的许多科学和工业情况。作为工作的一部分，将开发和优化用于在室温下成像气流的光学成像和流体流动的方法。此外，将通过实验结果开发和验证计算机模拟，以便可以从理论上研究管道的物理参数的效果。将为招募女学生参与加强从事科学研究作为职业的女性参与的巨大努力。这项工作涉及与本科生合作，以了解烟管管道和录音机中气流物理学的作品。主要目标是让本科生参与原始的科学研究，并向他们介绍兴奋和挑战，这将导致致力于科学追求的生活。科学的目标是了解不同几何形状的管道中的气流，该管道结合了由喷射边缘相互作用驱动的振荡。特别令人感兴趣的是振荡和稳态流的差异，雷诺数低，通过圆形和矩形管道传播。这种类型的系统是在诸如烟道管道和记录仪等绒毛乐器中发现的。传输电子斑点模式干涉法将用于通过3-D打印产生的相等横截面区域的圆形和矩形透明管道获得气流的高速图像。图像将与压力和流速测量值结合在一起，以了解为什么通过矩形器官管道的流动似乎与流通圆柱体器官管道有所不同。实验结果将用于验证计算机模拟，然后将其用于研究其他物理参数对通过振荡器谐振器系统流动的影响。结果将使对管道形状对声学和流体流的影响有更好的了解，并在谐振器中与流动驱动振荡相连。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和智力优点来评估的。更广泛的影响审查标准。