In examples at cylinder3d

[Yuji]

Dear all,

Now, I am using the example in examples/laminar/cylinder3d.
I replced re = 50 to re =100. The reults at outlet were starting oscillation and got divergence.
Following the commnetout in cylinder3d.cpp, it must appear Karman vortex.
What is wrong?

Best,
Yuji

[mathias]

Hi Yuji,

as in the spring school example cavity2d with the higher Reynolds number, you need to choose a finer resolution for stability. The stability condition is as indicated in the book of Krüger et al.

Best
Mathias

[Yuji]

Dear Mathias,

Thank you for your replying. I am going to read at section 4.4 in the LBM book of Krüger et al.

[Author]

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