Mechanical similitude and turbulence
- Creators
- von Kármán, Th.
Abstract
This report deals with the theory of the vortex street which enables the reproduction of the mechanism of the form resistance with suitable approximation under stated conditions, although such a resistance is precluded in a fluid which is perfectly inviscid. Disregarding for the present the origination of the vortex, the stream attitude in the wake of the body may be described approximately correct by the representation of individual vortices, without transgressing the law governing the motion of such vortices in an ideal fluid. Another striking example is the theory of the induced drag of wings, which likewise shows the extent of applying the vortex equations without overstepping the bounds of the dynamics of ideal fluids.
Additional Information
No Copyright. Translation of: "Mechanische Ahnlichkeit und Turblenz." Reprint from Nachrichten von der Gesellschaft der Wissenschaften zu Gottingen - Fachgruppe I (Mathematik). No. 5, pp. 58-76, 1930.Attached Files
Published - 19930094805.pdf
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Additional details
- Eprint ID
- 47900
- Resolver ID
- CaltechAUTHORS:20140804-121813080
- Created
-
2014-08-04Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Other Numbering System Name
- NACA Technical Memorandum
- Other Numbering System Identifier
- 611