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A Primal Method for the Solution of the Groundwater Quality Management Problem

Author

Listed:
  • Tullio Tucciarelli

    (Universita di Palermo, Palermo, Italy)

  • George P. Karatzas

    (University of Vermont, Burlington, Vermont)

  • George F. Pinder

    (University of Vermont, Burlington, Vermont)

Abstract

A new algorithm for the solution of the groundwater quality management problem is presented. The method assumes that most of the computational effort in such problems involves evaluation of the concentrations and their derivatives with respect to the pumping rates at the control points. The methodology proposed herein is a combination of the cutting plane method and the primal method. In this approach each line search moves from a feasible point towards the solution of a subproblem with linear constraints and the same objective function as the original problem. Sensitivity analysis is used to compute the derivative of a single concentration with respect to all the pumping rates by solving only one linear system at each time step. The method has been tested with analytical convex problems and a model example. A comparison of the algorithm's performance was conducted using MINOS 5.1. For the case of a linear cost function the method shows a computational growth rate almost linearly proportional to the number of decision variables.

Suggested Citation

  • Tullio Tucciarelli & George P. Karatzas & George F. Pinder, 1998. "A Primal Method for the Solution of the Groundwater Quality Management Problem," Operations Research, INFORMS, vol. 46(4), pages 463-473, August.
    • Handle: RePEc:inm:oropre:v:46:y:1998:i:4:p:463-473
    DOI: 10.1287/opre.46.4.463
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    Cited by:

    1. Ann E. Mulligan & David P. Ahlfeld, 2002. "A New Interior-Point Boundary Projection Method For Solving Nonlinear Groundwater Pollution Control Problems," Operations Research, INFORMS, vol. 50(4), pages 636-644, August.

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