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svFSIplus: Text file containing results empty

Posted: Sat Dec 07, 2024 10:10 am
by amit2262002
Hello!

I am running svFSIplus by pulling it using Singularity on an HPC cluster. When I run any simulation from the cases provided in the svFSIplus repository, the results are generated in the procs folder. However, the text files within the procs folder, "B_NS_Pressure", "B_NS_Velocity_flux", and "B_NS_WSS", remain empty and do not update with timesteps. Could you please help me understand what is causing these text files to be empty and how I can resolve this issue?

Thank you in advance!!!

Re: svFSIplus: Text file containing results empty

Posted: Sat Dec 07, 2024 2:55 pm
by davep
Hello,

This is a bug we just discovered (see https://github.com/SimVascular/svMultiP ... issues/309), will try to get a fix for it next week.

Cheers,
Dave

Re: svFSIplus: Text file containing results empty

Posted: Sun Dec 08, 2024 4:10 am
by amit2262002
Thank you for responding!
I am running CFD & FSI simulation for coronary normal case. I want to analyze the results at the inlet, wall, all the outlets, and any cross-section across the lumen. To do this, I need to align a slice perpendicular to the lumen. However, it is challenging to align the slice perpendicular to the lumen in ParaView considering the curved path of arteries. Could you please guide me on how to do this?

Re: svFSIplus: Text file containing results empty

Posted: Mon Dec 09, 2024 6:40 pm
by davep
Hello,

You can use centerline geometry to align slices along a vessel. Centerlines can be computed using the SV Modeler Tool or using the SV Python API (see https://simvascular.github.io/documenta ... mtk_module).

However, I don't know how to use centerlines geometry to position a slice plane in ParaView. You might need to write a Python script using vtk to do this. Have a look at https://github.com/ktbolt/cardiovascula ... nes/python. This is an old code that may not work but it should give you an idea about how to extract a slice using centerline data.

Cheers,
Dave