Pressure release. Point source. Mean field. Goff-J. P N s g O 100 0 3 -100 1500 0 0 0 1 0 -100 1500 0 0 0 1 0 0 0 0 0 0 0 -1.0 7.07 -100 -100 -2 50 1200 -1200 1000 1 950 25 512 50 150 0.001 0 0.5 3