Simulate with complex geometries and complex physics
CompDistToBoundary_Acc
threshold of distance until which the distance to different BE is treated as equal
For a given point x, the distance of the point to two different boundary elements (BE1, BE2) is treated as EQUAL
if abs(dist(x,BE1)-dist(x,BE2)) < CompDistToBoundary_Acc*h(x)
where h(x) is the smoothing length at the location x.