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 › Freesurface Model. › Reply To: Freesurface Model. August 16, 2024 at 8:50 pm #9104 DipParticipant Thanks, my target is to fixed solid but water is flowing surrounding it.