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Add an ode to the Richards Equation model

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How do I add an ode w.r.t a variable (not time or space) to the ricarhds equation model? My ode dependent variable is dl.Se (effective stauration from the richards equation) and independent variable is S (which is neither space or time)?

d(dl.Se)/ds = c (any constant)

If I have to use the weak contribution, then how does it look like?


0 Replies Last Post 25.09.2020, 15:09 GMT-4
COMSOL Moderator

Hello Sampurna Datta

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