Knudsen number
From Wiki @ Karl Jones dot com
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
