OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › STL FIle Import (Complex Geometry): Resolution Query › Reply To: STL FIle Import (Complex Geometry): Resolution Query October 26, 2021 at 9:04 pm #6105 AdrianKeymaster The resolution parameter N in examples is commonly w.r.t. some kind of characteristic length used during construction of the UnitConverter that yields the delta X value. You can see this if you check the usage of N in any of the examples.