File:Chord length definition (en).svg

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Description
English: Definition of the chord length on an airfoil.

The chord spans from the leading edge (surface point of minimum radius[1]) to the trailing edge. The chord length is the length of that segment (rather than that of the airfoil itself).

The airfoil represented here displays very high relative thickness and camber; it is used in turbine blades that operate at angles of attack exceeding 90°.

Different definitions for the thickness

Note that the thickness can be defined in several ways (see File:Airfoil thickness definition.svg). The so-called "American convention" is used here.

  1. ↑ Houghton, E. L.; Carpenter, P.W. (2003) Butterworth Heinmann , ed. Aerodynamics for Engineering Students (5th ed.) ISBN: 0-7506-5111-3. p.18
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Source Own work
Author Olivier Cleynen
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Date/TimeThumbnailDimensionsUserComment
current17:38, 11 December 2011Thumbnail for version as of 17:38, 11 December 2011963 × 447 (18 KB)AriadacapoImportant: change in the definition of thickness. See description page for details.
08:28, 27 November 2011Thumbnail for version as of 08:28, 27 November 2011963 × 447 (17 KB)Ariadacapo

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