Students reasoning in fluid dynamics: bernoulli's principle vs. the continuity equation
- In this work we investigate students’ thinking about and difficulties with incompressible, steady pipe flow. There is substantial evidence that students have difficulty applying and prioritizing the two basic principles of mass conservation (i.e., the continuity equation) and energy conservation (i.e., Bernoulli’s equation). When distracted by questions which involve gravity students based their answers on ill-supported assumptions about local pressures. The predominant arguments use a simplified Bernoulli equation, descriptive arguments or analogies to single-particle motion. Based on these results, an instructional intervention is developed that seems to address the observed difficulties.
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| Author: | Claudia SchäfleORCiD, Christian KautzORCiD |
|---|---|
| URN: | urn:nbn:de:bvb:861-opus4-13104 |
| ISBN: | 978-90-9031874-5 |
| Parent Title (English): | Proceedings of the 10th international conference on Physics Teaching in Engineering Education |
| Editor: | Arjan Lock |
| Document Type: | Conference Proceeding |
| Language: | English |
| Publication Year: | 2019 |
| Creating Corporation: | SEFI - Société Européenne pour la Formation des Ingénieurs |
| Contributing Corporation: | PWG – Physics Working Group of SEFI - Société Européenne pour la Formation des Ingénieurs |
| Tag: | conceptual understanding; hydrodynamic; students' thinking |
| Page Number: | 8 |
| First Page: | 1 |
| Last Page: | 8 |
| Project Title: | Pro-Aktjv - Physik in Rosenheim kontinuierlich just-in-time verstehen |
| Acronym: | Pro-Aktjv |
| Funding Agency: | Bayerisches Staatsministerium für Wissenschaft und Kunst |
| Grant Number: | 1542-MI-16-01 |
| faculties / departments: | Fakultät für Angewandte Natur- und Geisteswissenschaften |
| Licence (German): |  Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International |
