Thermodynamic lookup tables for saltwater systems based on Driesner & Heinrich (2007) correlations

VTK lookup tables for the thermodynamic properties of the H2O–NaCl system, generated from the saltwater correlations of Driesner & Heinrich (2007). The tables provide temperature, phase saturations, partial mass fractions, densities, viscosities, and enthalpies as functions of pressure, enthalpy, and overall salt mass fraction (PHZ tables) or pressure, temperature, and overall salt mass fraction (PTZ tables), as well as their derivatives. These tables are used by the unified compositional flow model presented in Oguntola et al. (2026), "Mathematical Modeling of Salt Precipitation and Multi-Phase Flow in High Enthalpy Fractured Geothermal Systems", and accessed via multilinear interpolation during simulation.