Pressure release. Mean field. Goff-J.
P N s g O
100 0
2
0 1500 0 0 0 1 0
0 0 0 0 0 0 -1.0  7.07 
-100
-100 -2 50

2121 2121
1 1 1 0
512 50 150 0.001 0 0.5 3