Ansys Learning Forum › Forums › Discuss Simulation › Fluids › TUREK HRON case -Problem of negative error in this case › Reply To: TUREK HRON case -Problem of negative error in this case
August 17, 2023 at 2:53 pm
Federico
Ansys Employee
How does this time step compare with the size of your elements near the moving boundary? Remember time step delta t <= mesh size/boundary velocity.