OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Fluctuations in velocity profile at inlet for turbulent channel flow setup › Re: Fluctuations in velocity profile at inlet for turbulent channel flow setup March 8, 2018 at 12:58 am #2798 MarcParticipant Hey, it is hard to stabilize three pressure outlets by this high Reynoldsnumber. You should use periodic boundaries in span and streamwise direction and a body force to drive the flow. Best Marc