Design, Fabrication, Testing, and Implementation of a Low-Cost Venturi Meter for Hands-on Active Learning*

INTERNATIONAL JOURNAL OF ENGINEERING EDUCATION(2023)

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摘要
In engineering education, conceptual understanding of the subject matter is as important as the attainment of practical skills. Therefore, teaching methodology should be designed in such a way that it enhances student conceptual understanding. To enhance conceptual understanding of fluid flow measurement, in this study, we report on the development of a low-cost, small-sized, reproducible, highly visual venturi meter module for active learning. With this module, students can conduct fluid flow experiments in their classroom or lab setting to learn the fundamental principles behind the venturi meter. Quantitative measurements of flow rates and associated parameters with the module reveal its usefulness for demonstrating fluid flow physics, while worksheet-guided studies promote student engagement and conceptual understanding. Results of pretest, posttest, and motivational survey assessments show that the module and associated activities improve conceptual understanding, result in a surge in confidence, and reinforce the desire to participate. Therefore, based on the findings, the modules developed can be used to enhance student understanding in fluid mechanics courses.
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关键词
venturi meter, hands-on experiments, fluid mechanics, flow measurement, active learning
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