[Tahmid]

Hello Everyone, I was validating a paper on shock train behavior in a rectangular duct using Ansys Fluent. My steady state solutions perfectly matching with the paper's one. But the unsteady solutions (eg: pressure variations over time in monitoring points, PSD analysis) are not aligning with the paper's results. I have tried everything I know or suggested in the paper. Here are some things that I have done:

Used the steady state solution as initial point of unsteady solution.

Kept the y+ value lower than 1. The mesh quality is quite good and I have also rechecked the Boundary Conditions.

Followed the setup done in the paper.

What can I do else? I would greatly appreciate if anyone can help me. I have attached the image showing how well my steady state results align with paper's.