在本科流体力学课程中使用 DIY-PIV 系统进行 Poiseuille 流动研究

IF 1.1 Q3 EDUCATION, SCIENTIFIC DISCIPLINES

International Journal of Mechanical Engineering Education Pub Date : 2024-01-27 DOI:10.1177/03064190241228440

V. Brazhenko, I. Mochalin, Jiancheng Cai

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引用次数: 0

摘要

由于激光、高速摄像机的出现以及大量图像处理软件的开发，流体流动可视化技术每年都在不断普及。目前，最流行的流动光学可视化方法之一是粒子图像测速仪（PIV）。PIV 是一种测量和分析流体特性的创新方法，能让学生更深入地了解流体是如何运动的。本文的重点是在本科生流体力学课程中使用低成本组件和免费软件实施 PIV，进行 Poiseuille 流动研究。引言讨论了 PIV 如何在教育机构中作为一种补充方法使用，强调了实施 PIV 的高昂设备成本，并举例说明了低成本 DIY 系统。以下各节介绍了理论背景、DIY-PIV 实验装置的说明以及 Poiseuille 流动分析的研究计划。此外，还简要介绍了用于实施 PIV 的免费图像处理软件。最后一节介绍了 Poiseuille 流量研究的结果，并分析了使用 DIY-PIV 系统进行测量的质量。本实验研究涵盖了与层流、Poiseuille 流（速度分布、最大速度和平均速度）、雷诺数和测量误差等概念相关的主题并强化了相关技能。

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DIY-PIV system for Poiseuille flow investigation in undergraduate fluid mechanics course

Fluid flow visualization techniques are becoming more widespread every year due to the availability of lasers, high-speed cameras, and the development of a large amount of image processing software. Nowadays, one of the most popular methods of flow optical visualization is particle image velocimetry (PIV). PIV is an innovative way to measure and analyze fluid characteristics, giving students a more in-depth understanding of how fluids move. This paper is focused on using low-cost components and free software to implement PIV for Poiseuille flow investigation in an undergraduate fluid mechanics course. The introduction discusses how PIV is being used as a complementary method in educational institutions, highlights the high cost of equipment to implement PIV, and gives examples of low-cost do-it-yourself (DIY)-PIV systems. The following sections present the theoretical background, descriptions of the DIY-PIV experimental setup, and plan of the investigation for the Poiseuille flow analysis. A brief overview of free image processing software for the PIV implementation is also provided. The last section presents the results of the Poiseuille flow study and analyzes the measurement quality using the created DIY-PIV system. The present experimental investigation covers topics and reinforces skills related to concepts: laminar flow, Poiseuille flow (velocity distribution, maximum and average velocity), Reynolds number, and measurement error.

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来源期刊

International Journal of Mechanical Engineering Education Social Sciences-Education

CiteScore

3.00

自引率

28.60%

发文量

期刊介绍： The International Journal of Mechanical Engineering Education is aimed at teachers and trainers of mechanical engineering students in higher education and focuses on the discussion of the principles and practices of training professional, technical and mechanical engineers and those in related fields. It encourages articles about new experimental methods, and laboratory techniques, and includes book reviews and highlights of recent articles in this field.