Hi Alex,

I am sorry I have not looked at this in quite a while. Have you looked at the tests in Nektar/solvers/IncNavierStokesSolvers/Tests since I wonder if there is an example in this directory which could be helpful.

Cheers,

Spencer.

On 24 Aug 2022, at 13:44, A.P. <k210@list.ru> wrote:

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Hello,

I am using CoupledLinearisedNS solver for 2D stabiblty analysis. To do this, it is needed to set the imaginary eigenvalue shift. Now it is possible only in 3D with a homogeneous direction.

I set an appropriate 3D case and the BetaZero property that overrides LHom.

As a result, eigenvalues look nice, but eigenfunctions are not. The eigenfunctions are not two-dimensional.

How I can get the eigenfunctions? Or my proposition about the BetaZero property is wrong?

Alex Proskurin
Altai state technical university

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