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 › Question about ExternalTauEffLESBGKadvectionDiffusionDynamics › Reply To: Question about ExternalTauEffLESBGKadvectionDiffusionDynamics June 27, 2023 at 3:25 pm #7614 jflorezgiParticipant Hi Fedor, yes now I understand, thank you Jonathan