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 › Avoiding spurious peak in residual convergence plot › Reply To: Avoiding spurious peak in residual convergence plot April 6, 2020 at 6:50 pm #4905 mathiasKeymaster Which spurious peak are you talking about? I dont understand your plot. Best Mathias