[PedFr0]

Hello all

I've recently run a simulation for flow over a 3-D vertical flat plate using FLUENT 14.5. I've attached the geometry for a clearer understanding. I have run the simulation using the RNGk-epsilon model using second-order upwind differencing for all variables. I found that under steady state conditions I get a fluctuating, somewhat periodic, velocity measured in the wake of the plate. When I then switch to an unsteady simulation the fluctuating velocity appears to be damped out to a steady value. Can anyone assist me in understanding if there is an issue with the simulation or if this is a valid result? I have attached the monitor for the y-velocity to give a clear picture.

Thanks in advance
Adhikar Hariram