Physics – Mathematical Physics
Scientific paper
2011-11-04
AWR-11-418 2012
Physics
Mathematical Physics
Scientific paper
An analytical solution is developed for three-dimensional flow towards a partially penetrating large-diameter well in an unconfined aquifer bounded below by an aquitard of finite or semi-infinite extent. The analytical solution is derived using Laplace and Hankel transforms, then inverted numerically. Existing solutions for flow in leaky unconfined aquifers neglect the unsaturated zone following an assumption of instantaneous drainage assumption due to Neuman [1972]. We extend the theory of leakage in unconfined aquifers by (1) including water flow and storage in the unsaturated zone above the water table, and (2) allowing the finite-diameter pumping well to partially penetrate the aquifer. The investigation of model-predicted results shows that leakage from an underlying aquitard leads to significant departure from the unconfined solution without leakage. The investigation of dimensionless time-drawdown relationships shows that the aquitard drawdown also depends on unsaturated zone properties and the pumping-well wellbore storage effects.
Kuhlman Kristopher L.
Mishra Phoolendra K.
Vessilinov Velimir V.
No associations
LandOfFree
Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Saturated-Unsaturated flow in a Compressible Leaky-unconfined Aquifer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-65114