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A Geologic Repository Modeling and Assessment Capability

Page • GDSA Framework (Geologic Disposal Safety Assessment Framework) is an open-source software toolkit for probabilistic performance assessment of deep geologic repositories for nuclear waste.  GDSA Framework simulates the coupled processes affecting radionuclide mobilization and transport in deep geologic repositories and performs forward propagation of uncertainties to evaluate confidence in performance measures....

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Conference Papers

Page • 2019 April 14-18th Proceedings of the 17th International High-Level Radioactive Waste Management Conference, American Nuclear Society, Knoxville, TN: Stein, E.R., Swiler, L.P., and Sevougian, S.D. (2019), Methods of Sensitivity Analysis in Geologic Disposal Safety Assessment (GDSA) Framework SAND2019-1783 C.Sevougian, S.D., Hammond, G.E., Mariner, P.E., MacKinnon, R.J., Swift, P.N., Rogers, R.D., Dobson,...

Conference Presentations

Page • 2019 February 5-7th International Workshop on How to Integrate Geochemistry at Affordable Costs Into Reactive Transport for Large-Scale Systems, Dresden, Germany: Hammond, G.E. and Lichtner, P.C. (2020) Bounding Computation and Complexity for Reactive Transport on Supercomputers:  A Perspective from Nuclear Waste Repository Performance Assessment SAND2020-1056 PEMariner, P., Debusschere, B.J., Hammond, G.E.,...

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Page • Collaborators include members of the following organizations and laboratories: © 2021 National Technology and Engineering Solutions of Sandia, LLC. | Questions & Comments | Privacy & Security Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly-owned subsidiary of Honeywell International, Inc.,...

GDSA Framework Software

Page • PFLOTRAN is an open-source, state-of-the-art, massively parallel subsurface flow and reactive transport simulator, and the engine of GDSA Framework. PFLOTRAN solves a system of generally nonlinear partial differential equations describing multiphase, multicomponent, and multiscale reactive flow and transport in porous materials. The Dakota project delivers both state-of-the-art research and robust, usable software for...

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Page • Welcome to GDSA Framework

PFLOTRAN Short Course & Tutorial, Albuquerque

Post • PFLOTRAN Short Course & Tutorial, October 17, 2017, Sandia National Laboratories, Albuquerque, NM:  We will be hosting a PFLOTRAN short course and tutorial, preceding the Interagency Performance & Risk Assessment Community of Practice (P&RA CoP) Annual Technical Exchange Meeting, Albuquerque, New Mexico, October 17-19, 2017. Registration for this event is...

PFLOTRAN Short Course & Tutorial, Albuquerque

Post • PFLOTRAN Short Course & Tutorial, January 2019, Albuquerque, NM

PFLOTRAN Short Course & Tutorial, Australia

Post • PFLOTRAN Short Course & Tutorial, March 2019, CSIRO, Adelaide, Australia

PFLOTRAN Short Course & Tutorial, Knoxville

Post • PFLOTRAN Short Course & Tutorial, April 2019, IHLRWM 2019, Knoxville, TN

PFLOTRAN Short Course & Tutorial, Spain

Post • PFLOTRAN Short Course & Tutorial, September 6-8, 2017, Barcelona, Spain: We will be hosting a PFLOTRAN short course and tutorial, preceding the MIGRATION 2017 Conference in Barcelona, Spain, this coming September. 

PFLOTRAN Short Course & Tutorial, Taiwan

Post • PFLOTRAN Short Course & Tutorial, April 2018, TaiPower, Taipei, Taiwan

PFLOTRAN Short Course & Tutorial,Switzerland

Post • PFLOTRAN Short Course & Tutorial, June 2019 U. Bern, Bern, Switzerland

PFLOTRAN Short Course, Sandia National Laboratories

Post • PFLOTRAN Short Course, May 10-11, 2017, Sandia National Laboratories, NM: We will be hosting a PFLOTRAN short course and tutorial, hosted at Sandia National Laboratories, this May.

Publications and Reports

Page • Technical Reports Conference Presentations Conference Papers

Technical Reports

Page • 2021 Sassani, D. Birkholzer, J., Camphouse, R., Freeze, G., Stein, E., SNL, LBNL. (2021), SFWST Disposal Research R&D 5-Year Plan- FY2021 Update. SAND2021-12491 RNole, M., Leone, R., Park, H., Paul, M., Salazar, A., Hammond, G., Lichtner, P. (2021), PFLOTRAN Development FY2021. SAND2021-8709 RMariner, P., Berg, T., Chang, K., Debusschere, B.,...

Virtual PFLOTRAN short course

Post • The 2022 PFLOTRAN Virtual Summer Short Course will be held every Tuesday from 4-6pm MDT beginning 6-14-22 through 7-12-22. This beginner course will cover the basics of running PFLOTRAN simulations, 1D, 2D, and 3D variably saturated flow and transport problems, applications to geologic nuclear waste disposal, and an introduction to...

Waste Management Symposia 2020

Post • March 8-12 Waste Management Symposia 2020, Phoenix, AZ