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Description
Features
Systems
Requirements
Description
SOLUTRANS is a 32-bit Windows program for modeling 3-D solute transport using the most sophisticated analytic solutions available. The solutions are those presented by Leij et. al. (1991, Water Resources Res., v.27, no.10, p.2719) and Leij et. al. (1993, Jour. Hydrol. v.151, p.193).
With SOLUTRANS you can, in a matter of minutes, model solute transport from a variety of source configurations and build important insights about key processes. SOLUTRANS offers a quick and simple alternative to complex, time-consuming 3-D numerical flow and transport models.
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Features
The solutions in SOLUTRANS all assume a uniform one-dimensional flow field in the positive x direction. There is three-dimensional dispersion, with different coefficients allowed in all three directions. One set of solutions assumes equilibrium in the solute and adsorbed phases (Leij et. al., 1991), while another set of solutions allows non-equilibrium (kinetic) conditions (Leij et. al., 1993). Separate first-order decay coefficients may be specified for the equilibrium and the non-equilibrium phases. The non-equilibrium models allow you to examine the distribution of equilibrium (mobile water) concentrations, non-equilibrium (immobile water) concentrations, and the total (aqueous + adsorbed) concentration.
These solutions do not make approximations that cause errors near the source like the approximate closed form solutions of Domenico and Robbins (1985, Groundwater, v.23, p.476) and Domenico (1987, Jour. Hydrol. v.91, p.49) do. These solutions are exact solutions which involve some numerical integration.
Both the equilibrium and non-equilibrium solutions allow four different source geometries:
- parallelipiped (rectangular box) initial volume
- cylindrical initial volume
The ten solutions implemented in SOLUTRANS are listed below:
1. Rectangular inlet, equilibrium, steady-state
2. Rectangular inlet, equilibrium
3. Rectangular inlet, non-equilibrium
4. Circular inlet, equilibrium, steady-state
5. Circular inlet, equilibrium
6. Circular inlet, non-equilibrium
7. Parallelepiped initial volume, equilibrium
8. Parallelepiped initial volume, non-equilibrium
9. Cylinder initial volume, equilibrium
10. Cylinder initial volume, non-equilibrium
Using the superposition features built into SOLUTRANS, it is possible to model contaminant sources that have irregular distributions in time and space, as shown below.
Creating irregular source geometries by: (a) superposition of three rectangular inlet source panels, and (b) superposition of two parallelipiped initial volume sources.
A source concentration that varies in time can be modeled as discrete steps using superpositioned inlet sources with different start times and concentrations.
All of these solutions may be used to create simpler two-dimensional, one-dimensional, and diffusion-only solutions, if needed.
User Interface
SOLUTRANS 5.0 has a seamless, Windows-standard user interface. It has been designed to be very simple and fast to use. Most common modeling operations are executed at the push of a button on the main screen. Mathematical model input data are accessed directly in a spreadsheet-like grid. You can quickly edit all aspects of the model in the model input screen. Data can be imported and exported using the Windows Clipboard.
SOLUTRANS can produce three types of plots: 1) concentrations vs. distance along a line, 2) concentrations vs. time at a point, and 3) surface plots of concentrations vs. location on a plane.
Plots are made on the screen, and may be exported to the Windows Clipboard or to disk files in either bitmap (.BMP) or metafile (.WMF) format. Concentration data may also be exported directly in comma-delimited ASCII files for use with other visualization software programs. Data may also be exported in .GRD format files for surface plotting using SURFER software.
The following forms of on-line help are available: tips that automatically display when you pause over a control, context-sensitive help (F1 key), and a Windows-standard help file. The help file is indexed, searchable, printable, and it contains embedded jumps to related topics.
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Systems Requirements
Requirements
- 4 MB of free hard disk space
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