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The Physics Teacher -- November 1998 -- Volume 36, Issue 8, pp. 457

Flight without Bernoulli

Chris Waltham

Physics Department, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, Canada V6T 1Z1

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Presented here is a very simple physical model of flight that relies only on Newton’s second law and yet is able to reproduce all the salient features of a more rigorous fluid dynamical treatment. From a pedagogical point of view the model helps understand the origins of lift and drag in terms of forces rather than pressures, and enables all the important points to be made without recourse to complicated mathematics.

© 1998 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

aircraft, aerodynamics, force, flow, linear momentum, pressure, viscosity, drag, friction, flight model, lift, drag momentum

PACS

PUBLICATION DATA

ISSN

0031-921X (print)  

Publisher

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1119/1.879927


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