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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Difference in results – Pressure inlet seems to be wrong › Reply To: Difference in results – Pressure inlet seems to be wrong

February 28, 2023 at 9:33 am
Rob
Forum Moderator

Not necessarily, but with a coarse mesh you'll see far more false/numerical diffusion. Most courses teach y+ for meshing to the exclusion of all else. They neglect to mention that you must also resolve the farfield and all flow features. Repost the image, and then tell me how well you think the jet is resolved.