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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › drag coefficent not matching of submarine › Reply To: drag coefficent not matching of submarine

July 7, 2023 at 8:17 am
SRP
Ansys Employee

Hi,

Check that your mesh is of sufficient quality and properly resolves the boundary layer near the submarine’s surface. Use a mesh refinement study to verify that the drag coefficient is not significantly affected by mesh size or grid resolution.Check the y+ value after the computation again as the real flow field will develop during the simulation and a remesh might be necessary.

Thank you.