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free exit boundary (outflow boundary)

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Hello Wise Ones,

I am trying to use EOS7C is model a methane plume that originates via subsurface injection and is allowed to leave the model through the top boundary. How can I implement a free exit or outflow boundary for methane (or any NCG)?

Thank you!


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Hi Amy,

I think that most people would simply use a fixed state boundary cell to represent an open boundary. When a cell is specified as "fixed state", fluid (and gas) can flow in and out of the cell without effecting the pressure, temperature and phase state of the cell.

Best Regards,


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