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1. PHAST: A Computer Program for Simulating Ground-Water Flow, Solute Transport, and Multicomponent Geochemical Reactions [USGS_PHAST]
The computer program PHAST simulates multi-component, reactive solute transport in three-dimensional saturated ground-water flow systems. PHAST is a versatile ground-water flow and solute-transport ...

2. HYDROTHERM: Three-dimensional finite-difference model to simulate multiphase ground-water flow and heat transport [USGS_HYDROTHERM]
Quantitative modeling of magmatic-hydrothermal systems has been hampered by the lack of publicly available models for multiphase, high-temperature flow. The HYDROTHERM model described ...

3. HST3D:A Computer Code for Simulation of Heat and Solute Transport in Three-Dimensional Ground-Water Flow Systems [USGS_HST3D]
The Heat- and Solute-Transport Program (HST3D) simulates ground-water flow and associated heat and solute transport in three dimensions. Over the years since the release of Versions 1.0 through 1.4, ...

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