Fast Solutions

  • FLAC2D features significant enhancements for modeling solution run times through multi-threading and algorithms to improve performance on modern hardware configurations. This includes for the mechanical, fluid, and thermal solutions; attach logic; and FISH scripting. The speed gains become greater for larger, more complicated meshes.
  • To take full advantage of multi-threaded FISH, a new LIST data type, SPLITTING syntax, and OPERATORS have been added, resulting in much faster execution of functions.
  • Implicit solvers for saturated-fluid flow and thermal calculations have been implemented for much faster analyses. Fast analytical temperature calculation for specified sources has also been implemented.
  • Maxwell Damping, an improved form of damping, is now available for zones, structures, and deformable links. With Maxwell damping, FLAC2D is a dynamics dynamo - making the analyses of large 2D site response and soil-structure interaction practical, while maintaining the high accuracy FLAC2D is known for.
Software Downloads

FLAC2D Releases

FLAC2D Legacy Releases


Latest News
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Upcoming Events
23 Sep
Getting Started with FLAC2D/FLAC3D
This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the ... Read More
14 Oct
Getting Started with 3DEC
Live Online Introductory Training Course. October 14-15, 2025... Read More
2 Dec
NEW TRAINING: Meshing in ITASCA Software
This introductory training course offers a comprehensive foundation in geotechnical modeling, enabling participants to identify various... Read More