Pressure boundary condition
Closed this issue · 2 comments
nataraj2 commented
Hi,
I learned from the JCP paper that describes the IAMR formulation that an outflow uses phi_MAC=0 (no tangential acceleration condition). I would like to know if IAMR does a global mass conservation correction when dealing with inflow-outflow cases.
asalmgren commented
hTe integral of the normal velocity on the outflow face is equal to the
integral of the velocity on the inflow face (assuming side walls) after the
MAC projection. This is the velocity field that updates the density. So
mass is conserved. Is this what you're asking about mass conservation?
If not, could you add more detail about what you're asking?
…On Wed, Aug 14, 2019 at 2:55 PM Mahesh Natarajan ***@***.***> wrote:
Hi,
I learned from the JCP paper that describes the IAMR formulation that an
outflow uses phi_MAC=0 (no tangential acceleration condition). I would like
to know if IAMR does a global mass conservation correction when dealing
with inflow-outflow cases.
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nataraj2 commented
Yes. That was the question I had. Thanks for clarifying.