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 › Lattice Boltzmann Methods › General Topics › Advection Diffusion D3Q19 Boundary Condition › Reply To: Advection Diffusion D3Q19 Boundary Condition January 19, 2024 at 12:30 pm #8145 mathiasKeymaster Dear Jowhlte, Which “the old case files” do you mean? Which “this simulation” Best Mathias