OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Pressure checkerboarding › Reply To: Pressure checkerboarding January 15, 2021 at 5:44 pm #5441 mathiasKeymaster That is most likely due to the very coarse resolution in the examples. We have cosen them that coarse that you get a result in some minutes. To get proper results you will need a cluster and a much finder resolution!