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emvalbuena / romtime

Unsteady Finite Element Reduced Order Model for Time Moving Domains
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(Possible) BUG : BDF-2 coefficients #41

Closed emvalbuena closed 3 years ago

emvalbuena commented 3 years ago

I think there is a bug with the BDF-2 scheme.

I am not sure if I am setting correctly the coefficients multiplying the forcing terms that arise due to time discretization.

https://github.com/KikeM/msc-literature-review/issues/41

emvalbuena commented 3 years ago

No bug.

What was causing that the BDF-2 convergence rate was not 2 was the approximation of the nonlinear operator.