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Earth Science Module

Posted May 15, 2010, 6:09 a.m. EDT 0 Replies

Mart M
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Hello everyone,
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.
0 Replies Last Post May 15, 2010, 6:09 a.m. EDT
COMSOL Moderator

Hello Mart M

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