OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Venturi3d example › Re: Venturi3d example July 2, 2018 at 6:44 pm #2858 LaurentDelaonParticipant hi Robin in venturi3D: what is the sigbifiance of : superGeometry.rename( 0,2,venturi ); //ok set 0 to 2 for material limit superGeometry.rename( 2,1,1,1,1 ); // set 2 to 1??? with offset??