Richards Equation — unsaturated variably-saturated flow L1-189

Fluid DynamicsRichards eqn for unsaturated flowδ=5 · challengingL_DAG = 3.3📋 Stub — not mineable

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Forward model E

d t h e t a / d t = d i v (K (h) \cdot g r a d (h + z)); h = s u c t i o nh e a d, t h e t a (h) f r o m v an G e n u c h t e n

Richards Equation — unsaturated variably-saturated flow forward model.

L-DAG

L.nonlinear_conductivity -> L.continuity -> L.capillary_pressure -> int.temporal

L.nonlinear_conductivityL.continuityL.capillary_pressureint.temporal

Well-posedness W

Existence:: true
Uniqueness:: true
Stability:: conditional
κ:: 440

Highly nonlinear; degenerate in dry limit.

Solvability C

Solver class:: HYDRUS, ParFlow, Richards-Net
Convergence rate q:: 1.5
Complexity:: O(N log N) per iteration

Specs (0)

No L2 specs registered yet for this principle.