[Nek5000-users] Add a forcing term on scalar equation

[nek5000-users at lists.mcs.anl.gov]

Hi

I would like to add a forcing term to the scalar equation.
According to the Nekton manual, Chapter 5, the forcing term is treated implicitly and the convective term is integrated using the third order Adam_Bashforth scheme (AB3).
For my case, the forcing term is a nonlinear function of the scalar field, so I cannot use the implicit scheme and I should lump it with the AB3.
Therefore, could you please guide me and indicate where in the code I can find the implementation of AB3 for the convective term of passive scalar?

Cheers
Iman

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