Elmer Discussion Forum

Hi, I just ran into a similar problem. All volumes where solved independently without sharing boudary conditions. I fixed it by calling v[] = BooleanFragments{ Volume{ex1[1]}; }{ Volume{ex2[1],ex3[1],ex4[1]}; }; from the openCASCADE kernel, where ex1 is the gas volume (without cut-outs) and ex{2..4}...