New and Updated Models, Apps, and Add-ins in Version 6.4

Artificial Ground Freezing

This example shows the thermo-hydro-mechanical (THM) effect to model artificial ground freezing. It couples heat transfer, groundwater flow, and solid mechanics to capture ice formation, pore-pressure changes, and ground deformation during a tunnel excavation.

Borehole Heat Exchanger

This example shows how to model an array of borehole heat exchangers (BHEs) for shallow geothermal energy production. The BHEs are simplified as line heat sinks with a uniform heat extraction rate. The array is embedded into a layered subsurface model with groundwater flow in one of the layers.

Permeability Estimation

This updated model uses a parametric sweep over different porosities to compute the permeability. In a subsequent step, a Least-Squares Fit function is used to determine the parameters of a power law relationship between porosity and permeability.