svpre displacement errors

[Ryan Pewowaruk]

I am having problems using svpre to initialize displacements for coupled momentum method FSI. No matter what I choose for the pressure in wall properties svpre always outputs the same displacement.vtp file.

Any suggestions?

Thanks,
Ryan

[David Parker]

Hi Ryan,

When I change the pressure value under Wall Properties I do see a change in the displacement.vtp file (see RangeMax):

pressure = 133300
<DataArray type="Float64" Name="displacement" NumberOfComponents="3" format="appended" RangeMin="0" RangeMax="0.51522703969" offset="5655"

pressure = 123300
<DataArray type="Float64" Name="displacement" NumberOfComponents="3" format="appended" RangeMin="0" RangeMax="0.47657534879" offset="5655" />

pressure = 0
<DataArray type="Float64" Name="displacement" NumberOfComponents="3" format="appended" RangeMin="0" RangeMax="0" offset="5655" />


Do you have the wall Type: set to Deformable ?

Cheers,
Dave

[Ryan Pewowaruk]

Thanks for the reply David, I do have the wall type set to deformable.

No matter what pressure I choose as the reference pressure the displacement.vtp looks like it's being calculated for zero pressure.

Best,
Ryan

[David Parker]

Hi Ryan,

Could you try this for the cylinder demo problem (http://simvascular.github.io/docsFlowSo ... l#examples), Example 3? That is what I am using and the displacements look correct. What OS are you using? Simvascular version?

Cheers,
Dave