[nhhamidsa]

hello friends.

i'm simulating 3D dynamic airfoil using dynamic mesh in ansys - fluent. my problem is that my frequency is small and it's taking long time for just one cycle.

so how can i find the most possible large time step in order to do a correct simulation ??


here is the simulation setup data:
viscosity model = LES
free stream =75.5 (m/s)
frequency of oscillation = 9.26 (1/s)
chord length = 0.2 (m)
RE =10^6


cheers