*GEL
*GEL
Define a swelling gel.

This option is used to define the growth of the gel particles that swell and trap wetting liquid in a partially saturated porous medium in the analysis of coupled wetting liquid flow and porous medium stress.
Reference:
There are no parameters associated with this option.
Data line to define a swelling gel
Data line to define a swelling gel:
Radius of gel particles when completely dry,
. (Units of L.)
Fully swollen radius of gel particles,
. (Units of L.)
Number of gel particles per unit volume,
. (Units of L3.)
Relaxation time constant for long-term swelling of gel particles,
. (Units of T.)