Accession Number:

ADA453442

Title:

Efficient and Robust Numerical Modeling of Variably Saturated Flow in Layered Porous Media

Descriptive Note:

Research paper

Corporate Author:

NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF ENVIRONMENTAL SCIENCES AND ENGINEERING

Personal Author(s):

Report Date:

1998-01-01

Pagination or Media Count:

10.0

Abstract:

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.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE