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 › Units in Multicomponent2D & 3D › Re: Units in Multicomponent2D & 3D July 18, 2017 at 4:09 pm #2669 albert.minkParticipant Dear bujji, the values nx denotes the number of cells in x direction.