Dear all,
As a beginner of libMesh, I am using it to build an incompressible N-S solver
with projection method.
When I am trying to calculate as follows,
u^{n+1}=u^{n}-dt*grad(p),
I wonder how to project the pressure gradient grad(p) in Q1 space into the
velocity u 's space Q2. Is there
any built-in function for such a task?
Thanks
Zhenyu Zhang
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