Verification of a sequential thermo-poroelasticity formulation in PFLOTRAN

[2607.01156] Verification of a sequential thermo-poroelasticity formulation in PFLOTRAN Skip to main content Search Submit Donate Log in Physics > Computational Physics arXiv:2607.01156 (physics) [Submitted on 1 Jul 2026 ( v1 ), last revised 21 Aug 2026 (this version, v3)] Title: Verification of a sequential thermo-poroelasticity formulation in PFLOTRAN Authors: J. Al Kubaisy , G. E. Hammond , S. Karra , J. Burghardt , L. Murdoch , T. Johnson , K. M. Rosso View PDF HTML (experimental) Abstract: We present the verification of a thermo--hydrologic--mechanical capability implemented within the PFLOTRAN framework, with emphasis on benchmark-based assessment of the THM implementation. The thermal--hydrologic (TH) equations for mass and energy balance are solved on control-volume blocks or Voronoi cells, while the quasi-static momentum balance is solved on an element-based dual mesh. The coupling is achieved using a strictly sequential, non-iterative fixed-stress split strategy in which the TH system is solved implicitly for pressure and temperature, followed by a mechanics update for the displacement unknowns. Several verification problems are set up against poroelastic and thermo-poroelastic benchmarks, demonstrating agreement with analytical or semi-analytical benchmark responses for pressure diffusion, the temperature field, and mechanical deformation. In addition, we propose a treatment for discontinuities (e.g., fractures) based on mapping between mechanical and flow degrees of freedom, and validate the approach by comparison to an analytical solution. This work establishes the basis for thermo-poroelastic coupling in PFLOTRAN and provides a solid modeling foundation for a range of applications (e.g., enhanced geothermal systems and other subsurface energy storage) involving coupled thermal--hydrologic--mechanical (THM) processes in geologic porous media. Comments: 22 pages, 14 figures, 6 tables Subjects: Computational Physics (physics.comp-ph) ; Computational Engineering, Finance, and Science (cs.CE); Geophysics (physics.geo-ph) Cite as: arXiv:2607.01156 [physics.comp-ph] (or arXiv:2607.01156v3 [physics.comp-ph] for this version) https://doi.org/10.48550/arXiv.2607.01156 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Jumanah Al Kubaisy [ view email ] [v1] Wed, 1 Jul 2026 16:41:25 UTC (4,684 KB) [v2] Fri, 3 Jul 2026 00:01:06 UTC (4,679 KB) [v3] Fri, 21 Aug 2026 18:59:47 UTC (4,685 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: physics.comp-ph < prev | next > new | recent | 2026-07 Change to browse by: cs cs.CE physics physics.geo-ph References & Citations SciX Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab)

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