Talbot, Lawrence Department of Mechanical Engineering, University of California, Berkeley, California.
- Additional Readings
In gas dynamics, the ratio of the molecular mean free path λ to some characteristic length L: Kn = λ/L. The length chosen will depend on the problem under consideration. It may be, for example, the diameter of a pipe or an object immersed in a flow, or the thickness of a boundary layer or a shock wave. See also: Mean free path
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