Version History
To update to the lastest version, simply uninstall Anaqsim on your computer and then reinstall using the latest version which can be downloaded using the link below. Your existing license should still be recognised. Please note, the email with your download link sometimes takes a couple of minutes to arrive.
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Release 2021-1 (27 July 2021)
- The unlicensed free version of Anaqsim is now much more capable, allowing up to 2000 equations, 3 levels, 2 time periods, and 5 steps per time period. The free version is now called unlicensed Anaqsim instead of AnaqsimEDU, since it is so capable and useful. For many users, the unlicensed version may be all they need. In prior releases, the free AnaqsimEDU version allowed 500 equations and 2 levels.
- The unlicensed and licensed versions of Anaqsim are the same software – they only differ depending on whether there is a valid activated license or not. The unlicensed version limits the complexity of models at the solve step only. For all other features (making plots, analysis menu items, etc.), the unlicensed and licensed versions have the same capabilities. If you have a saved solution, you can make plots and analyze any model with the unlicensed, free version.
- Added the option to specify the confined domain storage parameter as specific storage in addition to storativity. Specific storage is a more fundamental storage parameter independent of saturated thickness.
- You can now export the data that is contoured in a plot in a format readily imported into the popular Surfer plotting program.
- Added calibration targets for the discharges of internal head-specified and river line boundaries. These can be for single line boundaries or the total of multiple line boundaries. This is good for comparing stream gage data to modeled discharges of line boundaries representing those stream reaches. It is also useful for summing dewatering system discharges if the system uses sumps and trenches.
- Added calibration targets for the discharges of head-specified wells. These can be for single wells or the total of multiple wells. This is useful for summing well dewatering system discharges.
- Changed Sy and porosity (n) so they must be positive but can be 1.0 or more. This can be useful for modeling average travel times with adsorption and retardation (use R*n in place of n). Setting Sy=1 can be useful for modeling storage in ponds that are simulated as high-K unconfined domains.
- Made it so calibration head difference labels are selected with drop-down lists, rather than having to type them in.
- Forced the x axis lower limit to zero in time and distance plots when the starting x value is known to be zero.
- Fixed a bug that made the check of SVAS boundary conditions appear wrong in certain circumstances despite a correct transient solve.
- Fixed a bug in the scaling of v, and q vectors in nonlinear (not confined) domains.
- Fixed a bug that left off last column of contoured data at the right edge of a plot.
- Updated the math library component to the current version. They dropped support for 32-bit, so Anaqsim is now only 64-bit.
- Updated the CAD drawing component to the current version.
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Release 2020-1 (5 Feb 2020)
- Changed licensing to a new system where you purchase a fixed number of 1-year activations that can be used on one computer or many computers, as desired. There is no time limit for when activations can occur, but each activation lasts for 1 year. This replaces the old purchase/license scheme which had a fixed number of computers and a fixed duration (1-, 2-, or 3-years). The new system is more flexible and automated, so a user can independently activate licenses with an activation key code sent to them right after purchase. Release 2020-1 honors licenses under the old system (purchases prior to February 2020) and under the new system (Feb 2020 and later).
- Transient model initial heads are now specified by level and x,y instead of by domain and x,y. This allows greater flexibility and difference in the domain arrangements between the initial condition model vs. the transient model.
- Line pathlines can now propagate from equally spaced points on each segment of a polyline instead of from points on just a single line segment.
- Added an analysis tool to compute the discharge across all external line boundaries and report these to the run log. In a transient run these are reported for each time step. This capability is also now available in automated runs from the command prompt.
- Updated Microsoft .NET from version 4.5 to version 4.6.
- Fixed bug that placed pathline end point markers at 0,0 when no other end point was drawn
- Fixed bug in pathline tracing when a particle leaves vertically
- Fixed bug where in autorun mode, the plot points evaluated was always default (10000) instead of what was set in the .anaq file
- Fixed bug that prevented graphic editing of area pathline polygons
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Release 2019-1 (4 Feb 2019)
- Fixed typo in display of drain vertex info
- Changed interface plotting so the interface is shown in contours and profile plots when head is larger than the head at zero saturated thickness. It had been when head is larger than the head at the minimum saturated thickness, which left small gaps in the interface.
- Made it so capture constrain only applies to pathlines traced downstream; upstream pathlines are always displayed
- Write the name of initial heads file to the run log when solving with initial heads from file and not automated run
- Fixed bug where if solution converges in the last iteration = max_iterations, it reported it non-converged when it actually converged
- Fixed bug so transient model without any SVAS shows error message and loads completely (didn’t load completely before)
- Add more digits of accuracy to head, discharges, etc. written to the output file to improve accuracy of parameter estimation (e.g. PEST) derivatives
- Add ability to output Excel file with all model inputs in separate sheets of a *.xlsx file
- Fixed bug that would sometimes display a black plot area after making a plot
- Added popup labels for curves in chart plots
- Changed color palette on charts so adjacent curves are easier to distinguish
- Added Head Above – Head to cursor data displayed to left of plot
- Eliminated the splash screen that displays when loading Anaqsim – it loads fast now and splash screen was nuisance with automated runs
- Streamline plot-making. with one MakePlot menu item with current layer and time settings, another that allows you to choose layer and time
- Added calibration points where simulated velocity and direction are compared to observed. Add these results to calibration plot and text output
- Use parallel processing to speed up evaluation of functions for contours and vectors in plots (speed up larger for more cores in CPU)
- Use parallel processing to speed up line, area, well, and circle pathline tracing (speed up larger for more cores in CPU)
- Add analysis feature that writes the number of captured pathlines to run log, and include this in automated run outputs
- Search for dxf basemap in the current input file (.anaq) directory in addition to searching the path specified in the “What to Plot” input
- Allow user to name the initial head file, and have the name default to ***.hds file where *** is from the initial conditions model file name (it used to always use the transient model file name as the root)
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