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 › Wall contact in particle simulation (dkt2d example) › Reply To: Wall contact in particle simulation (dkt2d example) April 17, 2024 at 3:08 pm #8476 avrachan1Participant Dear Jan, Thanks for the explanation. I understand it now.