|Subject:||Re: read a list of point in a python script to define a set of points with Dirichlet boundary conditions (follow up)|
|Date:||Thu, 18 Nov 2021 23:03:25 +0100|
mfpb = gf.MeshFem(meshb, 1)
If I want to define a set of points with Dirichlet boundary conditions on a scalar unknown (pressure), are the following python script lines correct (using numpy here)?
import numpy as np
DPB = 2 # dirichlet on pressure brain
print('Read DIRICHLET boundary condition cranio');
# read dirichlet conditions on pressure
filecranio = open('craniopdir.txt', 'r') # 'r' = read
pidcranio = np.loadtxt(filecranio,dtype=int)
mfpb_ = gf.MeshFem(meshb, 1)
keptdofs = np.arange(mfpb_.nbdof())
keptdofs = np.setdiff1d(keptdofs, mfpb_.basic_dof_on_region(DPB))
mfpb = gf.MeshFem("partial", mfpb_, keptdofs)
How to set up that on these faces/nodes the pressure is non zero (p0= atmospheric pressure)?
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