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How can I have a "Free drainage" boundary condition? (for Richard's eq, Earth Science Module)
Posted 13.05.2010, 11:48 GMT-4 2 Replies
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I work with the Richards's equation (Earth Science Module) a model that consists in the vertical infiltration of water in a soil column.
At the bottom of the transport domain I want to impose a FREE DRAINAGE boundary condition ( that is an UNIT GRADIENT).
By working with the Richard's equation, the module only gives me the following options for the boundary conditions:
Pressure
Zero flow
Atmosphere gauge gold
Inward flows
Mixed (mix of Dirichlet, Newman and Cauchy conditions).
How can I do to have the condition of "free drainage"?
I'll be very grateful for your help,
M.
Hello Mart M
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