Ansdimat > Latest changes

Here are some of the key new features of ANSDIMAT v.10


1. Heterogeneity of radial aquifer for slug-tests, constant rate tests and pumping tests;
2. Drawdown corrections for Jacob’s solutions for unconfined aquifers;
3. Interpretation of pumping tests near a partially penetrating stream of a finite width;
4. Improved algorithm for automatic matching;
5. Graphic tools for boundary setup in AnsTest and
6. Angle-shape boundaries in AnsTest.

Earlier versions


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VERSION 9


1. ANSPIT module (simplified mine dewatering assessment and design) and
2. Large data files imports.

VERSION 8

1. AnsTrack module;
2. Delineation of Well Head Protection Zones;
3. More flexible model boundaries in AMWELLS (can differ from hydrodynamic boundaries);
4. Legend tool for drawdown plots;

VERSION 7

Version 7 has been significantly improved by adding new calculation schemes and solutions, new modules for generating reports and data export in Word and Excel formats and modules for saving the current work and viewing the test analysis history. A set of newly developed calculation instruments for the user is included. The appearance of diagnostic plots is improved: coordinate axis indication and classic view of logarithmic axis are now available
Capabilities of ANSDIMAT software system have been considerably expanded also by incorporating the AMWELLS - original software for analytical modeling of water supply well systems (Institute of Environmental Geosciences of the Russian Academy of Sciences, Saint-Petersburg Division, 2012) created for engineers involved in estimation of groundwater supply, design of small and large water intake systems in various hydrological conditions, evaluation of environmental impact of water intake operation.
In V7 UCODE code is replaced by UCODE_2005 that provides for solving reverse problems basing on 64-bit operation systems.

V7 new features:
1. Newly included analytical solutions.
1.1. Solutions for horizontal and inclined wells in confined, unconfined and leaky aquifers basing, in particular, on WHI program algorithm (authors - H. Zhan и V.A. Zlotnik, 2001).
1.2. Solution for unconfined aquifer taking into account the unsaturated zone influence - WTAQ v.2 numerical code integrated (A.F. Moench, 2011).
1.3. Solutions for partially penetrating wells in confined aquifer are supplemented by those for semi-bounded and bounded aquifers.
2. Module for generating activity reports in Microsoft Office Word format.
3. Option for active plot export in Microsoft Office Excel format
4. Module for saving the current work in ANSDIMAT format
5. Module for auto-generating the test analysis history.
6. More opportunities for diagnostic plot appearance.
7. UCODE_2005 adaptation for solving inverse problems.
8. A set of additional calculation instruments for the user i. e. conversion of aquifer parameters and units, aquifer parameters evaluation, special functions computation, etc,
9. Graphic dialogues with sample hydrological profiles allowing prompt estimation of drawdown value at any distance from the well pumped at a constant rate (more than 12 conceptual schemes included)
10. AMWELLS - software for analytical modeling of groundwater well systems supporting 2D and 3D animation. Data exchange between ANSDIMAT software system and AMWELLS formats is available.

VERSION 6

1. Analysis of aquifer tests in fracture-porous media
1.1.Solutions for drawdown in blocks and in fractures taking into account the pumping well storage capacity, skin effect in the pumping well and skin effect in fracture (Moench). Solutions consider various configurations of blocks and fractions, that is: 1) horizontal fracture system (slab-shaped blocks); 2) sphere-shaped blocks and 3)orthogonal fracture system.
1.2. Solution for drawdown in the vertical fracture for pseudo-radial (Gringarten, Ramey, Raghavan) or linear (Jenkins, Prentice) groundwater flow towards the fracture
1.3. Solution for drawdown in aquifer with a pumping well crossing a horizontal fracture (Gringarten, Ramey) either with account for or with no account for fracture aperture
2. Additional solutions for aquifer test analysis in two- or three-layer systems (Moench). Solutions for drawdown in aquifers and aquitards taking into account the pumping well storage capacity and skin-effect.
3. Drawdown solutions for aquitards within slightly leaky aquifer systems (Neuman, Witherspoon).
4. Additional solutions for drawdown in two-layer unconfined aquifer (Cooley, Case).
5. Analysis of tests in confined aquifers of variable thickness and for sloping unconfined aquifers, leaky or non-leaky (Hantush)
6. Drawdown solutions for confined or leaky aquifers anisotropic on horizontal plane (Hantush).
7. UCODE program adjusted to inverse problem analysis (with application to new solutions).
8 RADFLOW numerical code integrated in the program includes:
8.1. Graphical preprocessor for creation models in RADFLOW format;
8.2. A special module to run RADFLOW from ANSDIMAT program;
8.3. Graphical postprocessor for RADFLOW calculation results presentation in graphical or tabular form;
8.4. Help system for RADFLOW
9. Plotting hydraulic head graph and overlaying of drawdown and discharge rate graphs is now available
10. Easy access to editing input aquifer test data
11. Additional shortcut keys for most frequently used menu items
12. Extended interactive help system

VERSION 5

1. Solutions for drawdown in the aquitard in pumped leaky aquifer system taking into account the aquitard storage and drawdown in the adjacent un-pumped aquifer;
2. 8 solutions for multi-layer quifers with various aquitard/aquifer relative positions;
3. Hantush’s solution for pumping in unconfined aquifer near river;
4. Solutions for constant-drawdown test: for leaky and non-leaky confined aquifers;
5. Green’s function based solutions for semiinfinite and bounded leaky or non-leaky aquifers. Graphical method using these solutions is now available;
6. UCODE program adjustment to solving inverse problems using analytical solutions newly included in ANSDIMAT system;
7. Graphical preprocessor for creating models for MODFE program;
8. Special module for running MODFE program through ANSDIMAT system;
9. Graphical interface /postprocessor/ for MODFE program output data;
10. Interactive help system has been extended, in particular, a chapter describing operation of MODFE numerical code has been included;
11. New special tools and display options for diagnostic plot analysis.

VERSION 4

- The following solutions became available:
      1. For confined aquifer:

 1. Moench’s solution for drawdown in the observation well taking into account storage capacity of the pumping well, skin effect and storage capacity of the observation well;
2. Moench’s solution for drawdown in the pumping well taking into account its storage capacity and skin effect;
3. Popadopulos’s solution for drawdown in the observation well taking into account storage capacity of the pumping well
4. Popadopulos’s solution for drawdown in the pumping well taking into account its storage capacity

      2. For unconfined aquifer anisotropic on the vertical plane (for wells of full and partial penetration):

1. Moench’s solution for average drawdown in the observation well taking into account storage capacity of the pumping well, skin effect and storage capacity of the observation well;
2. Moench’s solution for drawdown in piezometer taking into account storage capacity of the pumping well, skin effect, storage capacity and shape factor of the piezometer;
3. Moench’s solution for drawdown in the pumping well taking into account its storage capacity and skin effect;

      3. For leaky aquifer:

1. Solution for drawdown in the observation well with account for storage capacity of the pumping well;
2. Solution for drawdown in the pumping well with account for its storage capacity

      4. For partially penetrating well in confined aquifer (linear source):

1. Moench’s solution for average drawdown in the observation well taking into account storage capacity of the pumping well, skin effect and storage capacity of the observation well;
2. Moench’s solution for drawdown in piezometer taking into account storage capacity of the pumping well, skin effect, storage capacity and shape factor of the piezometer
3. Moench’s solution for drawdown in the pumping well taking into account its storage capacity and skin effect;

- UCODE program was adjusted to solving inverse problems using analytical solutions newly included in ANSDIMAT system;
- Interactive help system was extended;

VERSION 3

1. The following solutions became available for unconfined aquifer:

- Boulton’s analytical solution (alternative for the existing Boulton’s solution) describing the whole diagnostic plot and suitable for semiinfinite and strip aquifers;
- graphic-analytical relationship for recovery period: strait-line method for time-drawdown and time-distance drawdown plots.

2. Analysis of water-table drawdown in unconfined aquifer with account for leakage from underlying un-pumped aquifers was included.
3. UCODE program was adjusted to solving inverse problems using analytical solutions newly included in ANSDIMAT system
4. Data page editor was improved.
5. New settings for plot properties were added. Now existing plot settings are inherited when new project is created.
6. Interactive help system was extended

VERSION 2

  • The following solutions became available:
  • For slug tests:
    • Cooper’s solutions for confined aquifer,
    • Bouwer-Rice’s solution for unconfined aquifer,
    • Picking’s solution for confined aquifer and non-instantaneous wellhead change
    • four Hvorslev’s solutions considering well construction and penetration,
    • analysis of slug test as a pumping/recovery test using any of the conceptual schemes included in the program
  • For unconfined aquifers:
    • analytical solution for water-table drawdown analysis,
    • graphic-analytical relationships: strait-line method (for time-, distance- and time-distance-drawdown methods), method of type line (for time- and time-distance-drawdown methods)
  • UCODE program was adjusted to solving inverse problems using analytical solutions newly included in ANSDIMAT system
  • Interactive help system was extended

Program interface was enhanced and some faults were corrected.