Relaxation Time
Equation
Input
Enter values in all but one input field and hit ENTER
τ
(s)
d
me
(m)
δ
κ
λ
g
(m)
η
g
(kg m
-1
s
-1
)
m
(kg)
Output
τ
= 8.76335 × 10
-8
s
Term List
τ
, Relaxation Time
d
me
, Mass-Equivalent Diameter
m
, Particle Mass
C
c
, Cunningham Slip Correction Factor
δ
, Porosity Factor
κ
, Envelope Shape Factor
η
g
, Dynamic Viscosity
λ
g
, Mean Free Path
Reference
Equation 9.38 and 9.78 of J. Seinfeld and S. Pandis,
Atmospheric Chemistry and Physics
, New York: Wiley, 2006.
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