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 › lift and drag calculation in LBM › Reply To: lift and drag calculation in LBM August 6, 2025 at 9:38 pm #10636 mathiasKeymaster Option 2 is what is usually been doen and what OpenLB uses as well!