On Jun 5, 2009, at 1:22 PM, Tanto Sugiarto wrote:
I built 1D thermal problem where I apply fixed flux BC at left side
face
and fixed value temperature at right side face. I found out after
simulation
run, the temperature at right side face is slightly different than
my BC specification.
For example, if I set right side BC temperature to be 100 C, and
left side BC flux to
be 1000. The final face temperature is 102.5 C on right side face.
I wonder if the right face temperature value is somewhat
interpolated value ?
Command that I use to get right face temperature is
"Temperature.getFaceValue()[-1]"
This has come up a few times before. As presently written, FiPy
Variables are not aware of boundary conditions. As a result, exterior
values of FaceVariables are simply obtained from from the nearest Cell
value.
To resolve this, see the discussion of _FixedBCFaceGradVariable in
this recent thread:
http://permalink.gmane.org/gmane.comp.python.fipy/1394
