Connect two pipes with different space stap
Connect two pipes with different space step
I need a two pipes described by equations:
But they have different steps in space (delta x).
I use HLLC Riemann solver.
For their connection, I use the following boundary conditions
(1)v[L+1] = (2)v
(1)p[L+1] = (2)p
(1)d[L+1] = (2)d
(2)v = (1)v[L]
(2)p = (1)p[L]
(2)d = (1)d[L]
[L+1] and  is ghost cells
In this case, I have a gap function of the velocity and mass flow.
Tell me how to implement such a connection of pipes with different steps in space?
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