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Dear nektar++ users and developers,

I am using the Adaptive SFD method to calculate the flow field information when a square column experiences vortex shedding. But I have calculated many times according to the prompts in the user guide document, and the following two results are displayed:

Vectors are lineary independent

NaN found during time integration

How should I set up an XML file to ensure correct calculation? I will attach my calculation file.

I run the command ：IncNavierStokesSolver Cylinder-4.xml.gz Cylinder-4.xml

Hongtao Cheng

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