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 › Drag Force (Coefficient) › Re: Drag Force (Coefficient) September 9, 2016 at 9:31 am #2447 aliiabMember Ok, thank you. I hoped that the dependence is not linear:). Thank you, Robin.