Flight without Bernoulli
作者:
Chris Waltham,
期刊:
The Physics Teacher
(AIP Available online 1998)
卷期:
Volume 36,
issue 8
页码: 457-462
ISSN:0031-921X
年代: 1998
DOI:10.1119/1.879927
出版商: American Association of Physics Teachers
关键词: flight model;lift;drag momentum
数据来源: AIP
摘要:
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.
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