Review
Open access
Sep 2026
Numerical Solvers for the Richards Equation: A Comparative Review of Stability, Efficiency and Mass Conservation
Richards’ equation (RE) describes transient water flow in variably saturated porous media and plays a fundamental role in hydrological, agricultural, and environmental modelling. Its inherent nonlinearity, potential degeneracy, and sensitivity to hydraulic parameterization make accurate numerical solutions a persistent...
Athanasios Chatzikamaris, G. Bourantas, V. N. Burganos et al.
· Engineer · 0 citations