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integration coupling variables
Posted Aug 16, 2011, 11:35 p.m. EDT Version 3.5a 0 Replies
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I'm trying to solve a 2D scalar advection-diffusion equation (in PDE mode) with internal periodic boundaries to mimic extraction and injection of a scalar from the 2D plane (with appropriate flow field specified apriori), i.e. scalar is extracted at one circular boundary and injected at another. The 2D domain is closed with homogeneous Neumann bc's so mass conservation is expected.
This works fine when using periodic boundaries (although mass conservation is not great), however I want to use integration coupling so to mimic complete mixing prior to re-injection of scalar. I can implement this using integration coupling of the scalar concentration at the outlet (no need to integrate scalar flux as flow at each boundary is axisymmetric), however the total reinjected scalar is now significantly reduced (i.e. mass conservation is woeful).
Do anyone have any ideas where I might be going wrong? Thanks in advance,
Dan
Hello Daniel Lester
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