Wolfram Language Paclet Repository

Community-contributed installable additions to the Wolfram Language

MalcolmWoodruff/ TerraPercolatio

Finite-element groundwater seepage and curvilinear-square flow nets for dams, slopes, excavations and wells

Contributed by: Malcolm Woodruff

This package uses finite elements to construct flow nets and porewater pressure diagrams for slopes, dams, excavations, wells and trench drainage. Isotropic or anisotropic soils and ground of varying permeabilities can be used. It covers confined and unconfined flow and recharge by rainfall and covers most cases encountered in normal civil engineering work.

Installation Instructions

To install this paclet in your Wolfram Language environment, evaluate this code:
PacletInstall["MalcolmWoodruff/TerraPercolatio"]


To load the code after installation, evaluate this code:
Needs["MalcolmWoodruff`TerraPercolatio`"]

Details

Finite-element groundwater seepage analysis and flow nets for 2D and axisymmetric problems: multi-layer anisotropic soils, phreatic surfaces and seepage faces, rainfall infiltration, and pore-pressure output for slope stability. See additional details and notes about the paclet in the User Manual.

Examples

Basic Example (1) 

Draw the flow net for an unconfined dam solution:

In[1]:=
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Rule[ShowStringCharacters, True]], "Tooltip"]]], Rule[Background, RGBColor[0.968`, 0.976`, 0.984`]], Rule[BaselinePosition, Baseline], Rule[DefaultBaseStyle, List[]], Rule[FrameMargins, List[List[0, 0], List[1, 1]]], Rule[FrameStyle, RGBColor[0.831`, 0.847`, 0.85`]], Rule[RoundingRadius, 4]], PacletSymbol["MalcolmWoodruff/TerraPercolatio", "MalcolmWoodruff`TerraPercolatio`FlowNet"], Rule[Selectable, False], Rule[SelectWithContents, True], Rule[BoxID, "PacletSymbolBox"]][damSol, "PotentialDrops" -> 24]
Out[1]=

Examples

After installation, open the "Demo" for the examples (including code), for slopes, dams, excavations, well points, and trench drainage;

Some results from the Demo file

Example 1 - Sheet pile excavation;

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Example 1 b — Same excavation, two - layer anisotropic soil;

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Example 2 — Unconfined flow through a homogeneous earth dam;

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Example 2b — Zoned dam with a clay core;

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Example 3 — TerraLapsus slope: seepage through a 1:2 slope;

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Example 3b — Rainfall on the slope (raised water table, unsaturated zone);

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and many others;

Publisher

Malcolm Woodruff

Compatibility

Wolfram Language Version 13.0

Version History

  • 1.6.7 – 02 October 2026
  • 1.6.6 – 02 October 2026
  • 1.6.5 – 02 October 2026
  • 1.6.4 – 01 October 2026
  • 1.6.3 – 30 September 2026
  • 1.6.2 – 30 September 2026
  • 1.0.4 – 16 August 2026
  • 1.0.3 – 14 August 2026

License Information

MIT License

Paclet Source

See Also