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Comment by autowikibot at 12/01/2014 at 07:37 UTC
8 upvotes, 1 direct replies
1: http://en.wikipedia.org/wiki/Prandtl%E2%80%93Glauert_singularity
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The Prandtl–Glauert singularity is the prediction by the Prandtl–Glauert transformation that infinite pressures would be experienced by an aircraft as it approaches the speed of sound. Because it is invalid to apply the transformation at these speeds, the predicted singularity does not emerge. This is related to the early 20th century misconception of the impenetrability of the sound barrier.
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