COMSOL 6.4 - Global Definitions

Global Definitions

Create parameters to define the model.

1

In the model builder window, under Global Definitions, click Parameters 1

2

In the Settings window for Parameters, locate the Parameters section.

3

In the table, enter the following settings:


Name	Expression	Value	Description
D	5e-11[m^2/s]	5E-11 m²/s	Diffusion constant
fr	15[pl/s]	1.5E-14 m³/s	Inlet flow rate
c0	1[mol/m^3]	1 mol/m³	Inlet concentration
alpha	0.5[(m^3/mol)^2]	0.5 m^6/mol²	Viscosity c^2-term prefactor