OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Two adjacent cuboids › Re: Two adjacent cuboids December 5, 2018 at 11:13 am #2973 mathiasKeymaster Dear Eduardo, a/ At the moment we have no grid refinement implemented. Therefore, your idea will not work. b/ To have a good start, you can come to our next spring school. Best Mathias