pressure fluctuation when applying time varying velocity inlet
 

Hello, I am using pimpleFoam to run an external aerodynamics simulation using IDDES - SA. Instead of using steady inlet flow, I recorded a flow with some turbulence then inject this flow to my inlet boundary. Velocity field is all looking good but I notice that pressure field in the domain fluctuates in some unphysical way. Here I am running the simulation using OF2012.

I noticed that this topic has been discussed in this thread: https://www.cfd-online.com/Forums/op...-pisofoam.html

I don't think i found a solution from this thread tho. Please drop some hints if someone knows a good way to fix it.

JT