[Gmsh] Boolean Difference Crashes Gmsh

[Laura Holewa]

Hello all,


I have three concentric cylinders. The first physical volume that I want to define is the volume between the outer most cylinder and the middle cylinder. The second physical volume that I want to define is the volume between the middle cylinder and the inner most cylinder. When I run this script gmsh tells me that there are subfaces intersecting and crashes. How can I fix this script? Could this be a possible bug?


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// Gmsh project created on Wed Jul 18 13:52:12 2018
SetFactory("OpenCASCADE");

Cylinder(1) = {0, 0, 0, 0, 0, 100, 10, 2*Pi};
Cylinder(2) = {0, 0, 10, 0, 0, 80, 5, 2*Pi};
Cylinder(3) = {0, 0, 15, 0, 0, 60, 2, 2*Pi};

BooleanDifference(6) = { Volume{1};Delete; }{ Volume{2}; };
BooleanDifference(7) = { Volume{2};Delete; }{ Volume{3}; };

Physical Volume ("outer") = {6};
Physical Volume ("inner") = {7};

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Thanks,


Laura
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