[Nek5000-users] viscous term

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

Hi,

In an simulation with the LowMach number formulation
I need to compute the term :
Laplacian(U) + 1/3 grad ( div(U) )

Is it stored somewhere ( BFX,BFY,BFZ ??? )?

Moreover, since i need it anyway during postprocessing,
which is the most efficient way to extract it?

Thank you.
francesco

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