OpenLB – Open Source Lattice Boltzmann Code › Forums › on Lattice Boltzmann Methods › General Topics › the geometry definition in cavity 2d problem › Reply To: the geometry definition in cavity 2d problem February 15, 2021 at 1:22 pm #5474 ztdepParticipant Does it has something with the implementation of boundary conditions. can I replace “eps” with other values?