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Reason for divergence of continuity eqn in Periodic boundary condition case

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Old   November 7, 2015, 00:13
Default Reason for divergence of continuity eqn in Periodic boundary condition case
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Hi all
I was working on Periodic Boundary condition for a wavy channel considering one module at a time in Fluent at very low Re (Laminar and steady).
In this case except continuity both momentum and energy equations are converging.
What might be the reason for this issue
Thanks in Advance.
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