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


Latest News
  • ITASCA Strengthens North American Delivery of Integrated Geomechanics and Hydrogeology Solutions Drawing on decades of geomechanical and hydrogeological expertise, ITASCA has announced the formation of ITASCA...
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  • WEBINAR: Solving Geothermal Challenges with XSite Numerical Modeling ITASCA Software and Baker Hughes are hosting a collaborative webinar to demonstrate how combining advanced...
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  • Newsletter October 2023 ...
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Upcoming Events
15 Sept
ITASCA at EUROCK 2026: Advancing Innovation in Rock Engineering
ITASCA is pleased to announce its participation in EUROCK 2026 – ISRM Regional Symposium, taking place from 15–19 September 2026 in Sko... Read More
20 Sept
ITASCA to Participate in CouFrac 2026
ITASCA will be participating in CouFrac 2026, taking place from 20–23 September 2026 in Uppsala, Sweden. The conference brings together... Read More
26 Oct
ITASCA at Slope Stability 2026: Strategic Sponsor and Technical Contributor_2
ITASCA is proud to participate as a Strategic Sponsor in Slope Stability 2026, one of the world’s leading international symposiums focu... Read More