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ERIC Number: EJ1197875
Record Type: Journal
Publication Date: 2018-Dec
Pages: 2
Abstractor: As Provided
ISSN: ISSN-0031-921X
An Inexpensive Apparatus for Classroom Visualization of the Lift on Airplane Wings
Liang, Qingsheng; Wei, Yajun
Physics Teacher, v56 n9 p612-613 Dec 2018
"How does an aircraft fly?" is one of the most frequently asked science questions by young pupils. The lift on airplane wings also makes a great example of the application of the Bernoulli principle while teaching fluid mechanics in introductory physics and engineering courses. The topic is of great interest and is therefore covered in most college and many high school science classes. A demonstration to visualize lift will enhance teaching, but such designs cannot be found in literature or textbooks yet, to the best of our knowledge. In scientific research and engineering development the visualization of air flow is conventionally fulfilled using a smoke tunnel. The approach for measurements of the pressure (and therefore lift force) employs strain gauges, load cells, and distributed electronic and fiber optic sensors. For classroom demonstrations and student learning, these pressure measuring mechanisms and smoke tunnels are too complicated and expensive. Such demonstrations are therefore rarely carried out in class, especially in high schools. We designed an apparatus that is simple and inexpensive but can adequately demonstrate the concepts.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A