Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › General Topics › How to get various lattice densities › Re: How to get various lattice densities August 15, 2017 at 4:20 pm #2695 mathiasKeymaster Hi Albert88, We have currently no grid-refinement inplementation available. Best Mathias