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... > classical mechanics aspects > continuum mechanics > fluid mechanics > fluid dynamics > fluid flow > gas flow > Knudsen number
... > theoretical physics aspects > field theory > classical field theory > continuum mechanics > fluid mechanics > fluid dynamics > fluid flow > gas flow > Knudsen number

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Knudsen number  

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  • The Knudsen number (Kn) is a dimensionless number defined as the ratio of the molecular mean free path length to a representative physical length scale. This length scale could be, for example, the radius of a body in a fluid. The number is named after Danish physicist Martin Knudsen (1871–1949). (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Knudsen_number)

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http://data.loterre.fr/ark:/67375/MDL-NQ00F4DV-T

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