4 create sphere radius 0.2
5 subtract volume 2 from volume 1
8 block 1 name 'PotentialFlow'
11 nodeset 2 name 'ZeroPressure'
13 create pressure on surface 2 magnitude 1
14 create pressure on surface 3 magnitude -1
16 volume all scheme Tetmesh
17 volume all size auto factor 10
20 save as "/Users/likask/MyBuild/mofem-bitbucket/mofem/meshes/pipe.cub" overwrite