<< Click to Display Table of Contents >> Navigation:  Appendix A Examples > Example 10: Time-varying Transport

In this example the Variable Properties option is used to examine time-varying advective-dispersive transport from a landfill. A landfill with a finite mass and a leachate collection system with an inward Darcy Velocity (i.e., a hydraulic trap) is considered. The leachate collection system is assumed to begin to fail after 19 years. After failure of the leachate collection system the leachate mound builds over a 10 year period, causing a reversal in the hydraulic gradient and a loss of the hydraulic trap.