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A Geologic Repository Modeling and Assessment Capability
Page • Welcome to GDSA Framework 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...

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.,...

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...

PFLOTRAN Short Course & Tutorial, Albuquerque
Post, October 17, 2017 • 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, Spain
Post, September 6, 2017 • 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, Sandia National Laboratories
Post, May 10, 2017 • 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.

Technical Reports
Page • 2023 LaForce, T., Freeze, G., Fukuyama, D., Leute, J., Sassani D. (2023), GDSA Deep Borehole Disposal investigations in FY 2023: Guidelines for a DBD Demonstration Test and Workshop Overview, SAND2023-11224RMariner, P.E., Curry, C.J., Debusschere, B.J., Fukuyama, D.E., Harvey, J.A., Leone, R.C., Mendez, C.M., Prouty, J.L., Rogers, R.D., Swiler, L.P. (2023),...