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Nodal boundary condition error

User: "Lea"
Altair Community Member
Updated by Lea

Hello,

I am trying to apply nodal boundary conditions with scattered data. The goal is to split one large model into two seprerate ones and use the outflow of the first one as inflow for the second model. Since the velocity profile is complex, I extracted the velocity data from the output to a csv file and now want to use this data as nodal boundary condition for the second half of the model. This however leads to the following error (same for all conditions): 

NODAL_BOUNDARY_CONDITION( "Advanced - z_velocity" )
acuPrep: *** ERROR: Scattered data is non-planar

Since it is only possible to include scattered date with xyz-coordinates, I am wondering how this data is supposted to be planar?

 

Thank you in advance!

Lea

 

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    User: "acupro"
    Altair Employee
    Accepted Answer
    Updated by acupro

    The data (source and target) need to be planar.  So for example, a planar outlet mapped to a planar inlet.  Best to use the   acuGetNodeSubset   script to extract the data from the planar outlet, to then arrange for the planar inlet with the NBC.   acuGetNodeSubset -h    for usage