CTRAN/W offers the capability to model a diverse set of solute and gas transport mechanisms including diffusion, advection, dispersion, adsorption, decay, and density-dependent flow due to its comprehensive formulation.
Dual Phase Gas Transfer
CTRAN/W models gas transfer in both the gaseous and aqueous phases. A bulk diffusion coefficient, longitudinal dispersivity, and transverse dispersivity are defined for each phase.
Saturated and Unsaturated
CTRAN/W is formulated for saturated and unsaturated transport, allowing the coefficient of diffusion to vary with water content and the advection process to adjust as groundwater velocities change in the unsaturated zone.
Sorption and Kinetic Reactions
CTRAN/W can model equilibrium sorption and first-order reactions such as radioactive decay, biodegradation, and hydrolysis.
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