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Strange mechanical behavior in FSI
Posted 17.10.2019, 17:38 GMT-4 Mechanical, Computational Fluid Dynamics (CFD), Studies & Solvers 2 Replies
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I am a student, new to COMSOL, and I'm trying to compute a fluid-structure interaction study where the sinusoidal body load applied to the mechanism induces a motion in the fluid. Everything seems to run smoothly but when I observe the results, something odd is displayed. While the solid body is deformed (cf attached file), it seems the the motion in the fluid is computed taking into account a not deformed solid(cf attached file).
It is problematic since the fluid solution is antiisymetric, while the solid behavior is not, and I'm not sure the results are right. Do any of you happen to know where the problem might come from? Is it a PEBKAC?