OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Neumann temperature boundary › Reply To: Neumann temperature boundary May 12, 2022 at 9:44 am #6561 antoniowuParticipant Hello Johanna, I am also trying to implement the Neumann boundary condition for ADE. Can you please suggest how we can exact temperature data from the previous cells at nx-1 and copy them to the outlet cells at nx? Best, Antonio