Why did my forceCoeffs shake so violently, does anyone know? -- CFD Online Discussion Forums

July 5, 2023, 20:46

Why did my forceCoeffs shake so violently, does anyone know?

GrpOne123

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Grp

Join Date: Feb 2023

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Hello everyone, when I used the pimpleDyMIbFoam of the Immersed boundary Method in foam-extend 4.1 to calculate the hydrodynamics of the airfoil, I found that the calculated thrust coefficient and Lift coefficient oscillated very violently, does anyone know why?
This has been bothering me for a long time, and I hope someone can answer it and give suggestions on how to fix this problem.Thank you

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