speedy Posted January 18, 2017 Report Share Posted January 18, 2017 Hello everybody I have a SEAWAT problem with MODFLOW/MT3DMS. Flow model works fine but MT3DMS prompts error message requiring to use sink/source term. I have no wells in the problem and the only BC are constant concentrations at both sides of the boundary. Why I need to specify sink/source terms? In this case do I need to specify negative values of ICBUND array at constant concentration cells? Thanks for help Speedy Quote Link to comment Share on other sites More sharing options...
Michal Posted February 22, 2017 Report Share Posted February 22, 2017 Hi speedy, it seems you need to enable the MT3DMS SSM package to enable the mixing of fluid coming from the constant conc. BCs. I would try to enable SSM and set ICBUND to -1. It should work then. Hope it helps. Michal Quote Link to comment Share on other sites More sharing options...
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