Knudsen Number Calculator

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Mean Free Path (λ) :
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What is Knudsen's Number? The Knudsen number (Kn) is a dimensionless quantity used to determine the relative importance of molecular effects in a gas or fluid flow. It is stated as the ratio of the molecule’s mean free path and the system’s characteristic length scale. The mean free path is the average distance a molecule travels between collisions while the characteristic length scale represents the relevant dimensions of the system.
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