A time-dependent Green's function-based model for stream-unconfined aquifer flows

Saturated–unsaturated flow in a compressible leaky-unconfined aquifer

An analytical solution is developed for three-dimensional flow towards a partially penetrating largediameter well in an unconfined aquifer bounded below by a leaky 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 foll...

Optimizing remediation of an unconfined aquifer using a hybrid algorithm.

We present a novel hybrid algorithm, integrating a genetic algorithm (GA) and constrained differential dynamic programming (CDDP), to achieve remediation planning for an unconfined aquifer. The objective function includes both fixed and dynamic operation costs. GA determines the primary structure of the proposed algorithm, and a chromosome therein implemented by a series of binary digits repres...

A Formula for the Stream Function of Certain Flows.

Frequency dependent hydraulic properties estimated from oscillatory pumping tests in an unconfined aquifer

http://dx.doi.org/10.1016/j.jhydrol.2015.08.021 0022-1694/ 2015 Elsevier B.V. All rights reserved. ⇑ Corresponding author at: Department of Energy Resources Engineering, Stanford University, Stanford, CA 94035, USA. Tel.: +1 650 723 1594. E-mail address: [email protected] (A. Rabinovich). Avinoam Rabinovich a,⇑, Warren Barrash , Michael Cardiff , David L. Hochstetler , Tania Bakhos , Gedeon...

A time-dependent vehicle routing problem for disaster response phase in multi-graph-based network

Logistics planning in disaster response phase involves dispatching commodities such as medical materials, personnel, food, etc. to affected areas as soon as possible to accelerate the relief operations. Since transportation vehicles in disaster situations can be considered as scarce resources, thus, the efficient usage of them is substantially important. In this study, we provide a dynamic vehi...