OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › code blockGeometryStructure2D.hh. › Re: code blockGeometryStructure2D.hh. September 3, 2018 at 10:34 am #2920 albert.minkModerator You are welcome to contribute to openLB. So you might provide an efficiency evaluation and compare the time consumed with and without.