OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Watermill-like simulation › Re: Watermill-like simulation June 14, 2018 at 7:15 pm #2834 LaurentDelaonParticipant hi Matias I wanr also move a rectangle in a cilinder. Like a very simple moving valve. Could you show me how you realise the code for your valve ? regards. Laurent.