Knudsen Number Calculator  



Mean Free Path :
λ = Kn*L
Representative Physical Length Scale :
L = λ/ Kn
Where,
Kn = Knudsen Number,
λ = Mean Free Path,
L = Representative Physical Length Scale.
Example:
Calculate the Knudsen Number for the given details.
Mean Free Path (λ) = 25 m
Representative Physical Length Scale (L) = 20 m
Solution:
Apply Formula:
Kn = λ/L
Kn = 25/20
Kn = 1.25