Difference between revisions of "Knudsen number"
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Revision as of 05:18, 8 February 2016
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).
See also
External links
- Knudsen number @ Wikipedia
