Reply To: Unit conversion
please have a look at the book “The Lattice Boltzmann Method” by Krüger et al. [https://www.springer.com/gp/book/9783319446479] which dedicates an entire Chapter to this task.
More information about the unitConverter in OpenLB can be found in the User Guide (https://www.openlb.net/wp-content/uploads/2020/12/olb_ug-1.4r0.pdf, see Section 2.4 “Lesson 4: UnitConverter – Lattice and Physical Units”).
Please note that akin introductory topics are taught at our yearly Spring school (https://www.openlb.net/spring-school-2022/), which offers many benefits for learning LBM and OpenLB.