Temperature Profile and Dilution
On this page, general hints are given about the loaded values and functions in this demo case. If you want an overview and an explanation of the resulting plots, click here.
The first field specifies the initial particle size distribution. Clicking on "Edit" opens a window which shows a preview of the chosen distribution. Moreover, the underlying grid can be specified by setting the number of grid points and the distance of the so called pivot elements. In the second field the initial seed mass is set. The third field asks for the initial mass of the continuous medium, which gives the total mass of solvent and antisolvent.
In the last field the initial concentration is set. Note that the concentration is defined as
and therefore it is dimensionless.
In the first field the temperature profile is set. The default profile is a piecewise linear profile defining three regions. In the second field the profile for the antisolvent is defined. It is also a piecewise linear profile with the same regions but different values giving a different shape of the curve. The profiles will be plotted automatically by solving the system.
Note that the solubility function is an anonymous function with up to two variables. The two variables are temperature (T) and antisolvent mass fraction (xm). However, the default function loaded in this case is a function of temperature only.
The shape factor for a cube is 1 (default). For a sphere it would be Pi/6 (where the characteristic length is the diameter).
The growth rate is defined according to formula
where the first bracket is a logical expression (growth only if supersaturated), k is a constant and the last bracket denotes the driving force.
Nucleation is set to zero.
To get an overview and explanation of the solution plots, click here.