The Impact of Numerical Precision on Optimal Groundwater Hydraulic Controlby David P. Ahlfeld, (A.M.ASCE),
R. Guy Riefler,
Abstract: The numerical precision retained in the formulation of groundwater hydraulic control optimization problems can have significant impacts on the accuracy of the solution. Sources of imprecision include the use of finite differencing for calculation of the response matrix and the solution of the groundwater simulation model. These elements are discussed and an example of the impacts of imprecision on optimal solutions is presented. It is recommended that groundwater optimization codes be modified to improve precision and care be taken in specific application.
Subject Headings: Groundwater | Numerical methods | Hydraulics | Matrix (mathematics) | Simulation models | Hydrologic models | Standards and codes
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