Diffusion in One Dimension

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The equation for unsteady-state diffusion is , where
is the distance and
is the solute concentration. This Demonstration plots the time-evolution of the concentration profile in the solute, for varying coefficient of diffusion and concentration amplitude.
The diffusion function
is determined as a function of the distance
, the diffusion coefficient
, and time
.
Contributed by: Olexandr Eugene Prokopchenko (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
The function is a function of position and time; you can regulate the diffusion coefficient
and concentration amplitude
. The range of
is the interval from -0.4 to 0.4 (relative units on the horizontal axis).
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