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Hello,

I am using a custom inlet boundary condition (bct.dat) where the flow at some of the mesh nodes in the inlet plane is positive (i.e. backward flow). My question is if Simvascular treats this modified bct.dat file differently than the inlet boundary conditions with a negative flow (i.e. forward flow) at all the inlet mesh nodes? For example, does the backflow stabilization do anything in this case?

Thank you so much,
Amirtaha

Hi Amirtaha,

Backflow stabilization addresses numerical instabilities arising from Neumann boundary conditions on the outlet faces. Simvascular uses whatever is in the bct.dat file for the inlet flow, does not treat different flow regimes (positive or negative) differently.

Cheers,
Dave