Efficient and Robust Numerical Modeling of Variably Saturated Flow in Layered Porous Media
NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF ENVIRONMENTAL SCIENCES AND ENGINEERING
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We extend our recent work on higher-order time integration of Richards equation to layered heterogeneous porous media, using a differential-algebraic-equation-based method of lines DAEMOL approach. We show that the DAEMOL approach is robust and efficient compared to standard low-order time integration methods for heterogeneous media. We also show the advantage of using an integral representation of permeability compared to a standard arithmetic mean for the test problems considered herein.
- Geology, Geochemistry and Mineralogy
- Operations Research