The University of Sheffield
Browse
Paper_FDSIM_V1.pdf (1.2 MB)

Variable Density Groundwater Flow Simulation by Reduced Order Models

Download (1.2 MB)
report
posted on 2024-03-07, 16:40 authored by Domenico BauDomenico Bau, Mohammadali GeranmehrMohammadali Geranmehr, Alex S. Mayer, Weijiang YuWeijiang Yu

Effective management of coastal aquifers, vital for sustaining water resources and ecological balance, demands accurate and efficient simulation of seawater intrusion phenomena. This paper introduces a novel reduced-order model for seawater intrusion simulation, merging proper orthogonal decomposition (POD) with a finite difference approach. Addressing the computational challenges inherent in coupled partial differential equations governing density-dependent flow and solute transport, the proposed model offers a streamlined solution with enhanced computational efficiency. By projecting the system of equations onto a reduced set, POD facilitates the creation of smaller linear equation systems, ensuring rapid computation without compromising accuracy. Benchmarking against established codes like SEAWAT validates the model's efficacy for Elder and Henry's problems. The study demonstrates the potential of POD in advancing coastal groundwater management, offering a fast tool, which could be used for simulation-optimization models as well as sensitivity and uncertainty analysis models.

Funding

CBET-EPSRC: Efficient Surrogate Modeling for Sustainable Management of Complex Seawater Intrusion-Impacted Aquifers

Engineering and Physical Sciences Research Council

Find out more...

History

Ethics

  • There is no personal data or any that requires ethical approval

Policy

  • The data complies with the institution and funders' policies on access and sharing

Sharing and access restrictions

  • The uploaded data can be shared openly

Data description

  • The file formats are open or commonly used

Methodology, headings and units

  • Headings and units are explained in the files

Usage metrics

    Department of Civil and Structural Engineering

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC