The Basic Aerodynamics of Floatation

[+] Author and Article Information
M. J. Davies

Research & Technology Centre, John Lysaght (Aust.) Ltd., Port Kembla, 2505, Australia

D. H. Wood

Department of Mechanical Engineering, University of Newcastle, N.S.W., 2308, Australia

J. Fluids Eng 105(3), 323-328 (Sep 01, 1983) (6 pages) doi:10.1115/1.3240998 History: Received May 26, 1982; Online October 26, 2009


The original derivation of the basic theory governing the aerodynamics of both hovercraft and modern floatation ovens, requires the validity of some extremely crude assumptions. However, the basic theory is surprisingly accurate. It is shown that this accuracy occurs because the final expression of the basic theory can be derived by approximating the full Navier-Stokes equations in a manner that clearly shows the limitations of the theory. These limitations are used in discussing the relatively small discrepancies between the theory and experiment, which may not be significant for practical purposes.

Copyright © 1983 by ASME
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