J. Gómez-Tejedor, Eduard Blasco-Pérez, Jaime Riera
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引用次数: 0
Abstract
As propulsive systems are challenging for undergraduates to understand, it is essential to design experiments that can help their visualization and testing. The development of digital technology (high-speed cameras, digital tracking software, or 3D printers) facilitates the implementation of such designs. We proposed to study the thrust produced by a propeller, whose operating principles are based on the conservation of linear momentum. The study was carried out on an air track to avoid frictional forces. Several system characteristics were established, such as the propellor’s rotation speed and angle of attack and different magnitudes were determined, including the dynamic thrust and static force values. 3D CAD software was used to design the propellers for the experiments, and 3D printers to produce them.
由于推进系统对于本科生来说是一个难以理解的问题，因此设计有助于可视化和测试的实验至关重要。数字技术（高速相机、数字跟踪软件或 3D 打印机）的发展为实现此类设计提供了便利。我们提议研究螺旋桨产生的推力，其工作原理是基于线性动量守恒。研究在空气轨道上进行，以避免摩擦力。我们确定了几个系统特征，如螺旋桨的旋转速度和攻角，并确定了不同的推力大小，包括动态推力和静态力值。实验使用 3D CAD 软件设计螺旋桨，并使用 3D 打印机制作螺旋桨。
期刊介绍：
European Journal of Physics is a journal of the European Physical Society and its primary mission is to assist in maintaining and improving the standard of taught physics in universities and other institutes of higher education.
Authors submitting articles must indicate the usefulness of their material to physics education and make clear the level of readership (undergraduate or graduate) for which the article is intended. Submissions that omit this information or which, in the publisher''s opinion, do not contribute to the above mission will not be considered for publication.
To this end, we welcome articles that provide original insights and aim to enhance learning in one or more areas of physics. They should normally include at least one of the following:
Explanations of how contemporary research can inform the understanding of physics at university level: for example, a survey of a research field at a level accessible to students, explaining how it illustrates some general principles.
Original insights into the derivation of results. These should be of some general interest, consisting of more than corrections to textbooks.
Descriptions of novel laboratory exercises illustrating new techniques of general interest. Those based on relatively inexpensive equipment are especially welcome.
Articles of a scholarly or reflective nature that are aimed to be of interest to, and at a level appropriate for, physics students or recent graduates.
Descriptions of successful and original student projects, experimental, theoretical or computational.
Discussions of the history, philosophy and epistemology of physics, at a level accessible to physics students and teachers.
Reports of new developments in physics curricula and the techniques for teaching physics.
Physics Education Research reports: articles that provide original experimental and/or theoretical research contributions that directly relate to the teaching and learning of university-level physics.
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