June 2026
v1.1 released
The AI surrogate, pile-field interference, and seasonal loads ship in one application.
Surrogate-accelerated coupled physics
Coupled-physics geothermal design, at interactive speed.
Terra Multiphysics pairs a validated thermo-hydro-mechanical finite-element engine with an AI surrogate, turning hours of simulation into real-time design for energy piles and borehole heat exchangers.
New v1.1 — AI surrogate + pile-field interference →One application carries the whole coupled workflow — geometry, mesh, a thermo-hydro-mechanical solve, an AI surrogate, and 3-D results — on your desktop, no cloud required.
How it fits together
One pipeline, from geometry to a sized ground loop
A purpose-built physics engine, a guided interface, and an AI layer that makes the whole thing real-time.
The suite
One application, the whole coupled workflow
A purpose-built physics engine, a guided interface, and an AI layer that makes the whole pipeline real-time.
Geometry builder
Build and edit solids on an owned CAD kernel — primitives, booleans, and face-level boundary conditions.
Learn more →Mesher
Generate a clean tetrahedral mesh at coarse, medium, or fine resolution — built in, no external pre-processor.
Learn more →THM solver
A custom finite-element engine resolving heat, pore-fluid flow, and ground deformation together, with an embedded pipe network.
Learn more →AI surrogate
A validated surrogate of the coupled solver — design exploration roughly 985,000× faster, with uncertainty.
Learn more →3-D post-processor
Inspect colour-mapped temperature fields, the pipe, and the soil response in an interactive 3-D viewer.
Learn more →
Application gallery
Validated models, ready to study
One coupled solver and surrogate, across the ground-loop systems that matter — most shown as real finite-element fields, checked against measured or reference data.
Energy pile
A foundation that heats the building
An instrumented three-loop energy pile over a 20-day in-situ test (Faizal et al., 2016), with soil–structure interaction.
0.42 °C vs fieldView model →
Ground heat recovery
Heat that comes back through the floor
A buried serpentine collector feeding a radiant floor, cross-checked against a COMSOL reference to within about 0.1 °C.
vs COMSOLView model →
Thermo-mechanical
Heat the pile, watch it heave
A full-scale heating test (Laloui et al., 2006): pile temperature and head movement, the coupled signature temperature-only tests miss.
EPFL testView model →Validation references — energy pile: Faizal, Bouazza & Singh (2016), Geomechanics for Energy and the Environment 8, 8–29. Heating test: Laloui, Nuth & Vulliet (2006), Int. J. Numer. Anal. Methods Geomech. 30(8), 763–781. Ground heat recovery cross-validated against COMSOL Multiphysics 6.3.
Validation
Validated three ways
Cross-validated against COMSOL, instrumented field data, and closed-form analytical theory.
985,000×
vs a full FEM solve
0.08–0.38 °C
vs COMSOL
R² 0.9997
held-out accuracy
0.30–0.42 °C
vs instrumented field data
Latest updates
What's new
June 2026
Surrogate validated
0.009 °C mean error across 200 held-out coupled solves, at R² 0.9997.
June 2026
Pile-field interference
Overlapping thermal plumes in dense fields, resolved where a spreadsheet cannot.
Put full-physics geothermal design on every desk
We're onboarding early-access design partners now — tell us what you're working on.
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