Addition of simultaneous heat and solute transport and variable fluid viscosity to SEAWAT

  • Authors:
  • Danny Thorne;Christian D. Langevin;Michael C. Sukop

  • Affiliations:
  • Department of Mathematics, Physics and Computer Science, Georgetown College, 400 E. College Street, Georgetown, KY 40324, USA;United States Geological Survey, 3110 SW 9th Avenue, Fort Lauderdale, FL 33315, USA;Department of Earth Sciences, Florida International University, University Park, Miami FL 33199, USA

  • Venue:
  • Computers & Geosciences
  • Year:
  • 2006

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Abstract

SEAWAT is a finite-difference computer code designed to simulate coupled variable-density ground water flow and solute transport. This paper describes a new version of SEAWAT that adds the ability to simultaneously model energy and solute transport. This is necessary for simulating the transport of heat and salinity in coastal aquifers for example. This work extends the equation of state for fluid density to vary as a function of temperature and/or solute concentration. The program has also been modified to represent the effects of variable fluid viscosity as a function of temperature and/or concentration. The viscosity mechanism is verified against an analytical solution, and a test of temperature-dependent viscosity is provided. Finally, the classic Henry-Hilleke problem is solved with the new code.