OpenSn: A massively parallel, open-source simulation environment for discrete ordinates radiation transport.

Jean C. Ragusa

David Andrs Zachary Hardy Daryl Hawkins Jim E. Morel Dinh Quoc Dang Nguyen Jean C. Ragusa OpenSn: A massively parallel, open-source simulation environment for discrete ordinates radiation transport. 110001 2026 320 Comput. Phys. Commun. https://doi.org/10.1016/j.cpc.2025.110001 db/journals/cphysics/cphysics320.html#AndrsHHMNR26 streams/journals/cphysics

Quincy A. Huhn Jean C. Ragusa Youngsoo Choi Offline Maximizing Minimally Invasive Proper Orthogonal Decomposition for Reduced Order Modeling of Sn Radiation Transport. 2025 December abs/2512.13963 CoRR https://doi.org/10.48550/arXiv.2512.13963 db/journals/corr/corr2512.html#abs-2512-13963 streams/journals/corr

Quincy A. Huhn Mauricio E. Tano Jean C. Ragusa Youngsoo Choi Parametric dynamic mode decomposition for reduced order modeling. 111852 2023 February 475 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2022.111852 db/journals/jcphy/jcphy475.html#HuhnTRC23

Ian Halvic Jean C. Ragusa Non-intrusive model order reduction for parametric radiation transport simulations. 112385 2023 November 492 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2023.112385 db/journals/jcphy/jcphy492.html#HalvicR23

Patrick Behne Jan I. C. Vermaak Jean C. Ragusa Minimally-invasive parametric model-order reduction for sweep-based radiation transport. 111525 2022 469 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2022.111525 https://www.wikidata.org/entity/Q113871664 db/journals/jcphy/jcphy469.html#BehneVR22

Quincy A. Huhn Mauricio E. Tano Jean C. Ragusa Youngsoo Choi Parametric Dynamic Mode Decomposition for Reduced Order Modeling. 2022 abs/2204.12006 CoRR https://doi.org/10.48550/arXiv.2204.12006 db/journals/corr/corr2204.html#abs-2204-12006

Jan I. C. Vermaak Jean C. Ragusa Marvin L. Adams Jim E. Morel Massively parallel transport sweeps on meshes with cyclic dependencies. 109892 2021 425 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2020.109892 https://www.wikidata.org/entity/Q114163491 db/journals/jcphy/jcphy425.html#VermaakRAM21

Mauricio E. Tano Jean C. Ragusa Sweep-Net: An Artificial Neural Network for radiation transport solves. 109757 2021 426 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2020.109757 db/journals/jcphy/jcphy426.html#TanoR21

Jean-Luc Guermond Bojan Popov Jean C. Ragusa Positive and Asymptotic Preserving Approximation of the Radiation Transport Equation. 519-540 2020 58 SIAM J. Numer. Anal. 1 https://doi.org/10.1137/19M1260785 db/journals/siamnum/siamnum58.html#GuermondPR20

Mauricio E. Tano Gavin D. Portwood Jean C. Ragusa Accelerating Training in Artificial Neural Networks with Dynamic Mode Decomposition. 2020 abs/2006.14371 CoRR https://arxiv.org/abs/2006.14371 db/journals/corr/corr2006.html#abs-2006-14371

Milan Hanus Logan H. Harbour Jean C. Ragusa Michael P. Adams Marvin L. Adams Uncollided flux techniques for arbitrary finite element meshes. 2019 398 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2019.07.046 https://www.wikidata.org/entity/Q127393207 db/journals/jcphy/jcphy398.html#HanusHRAA19

Mauricio E. Tano Jean C. Ragusa Acceleration of Radiation Transport Solves Using Artificial Neural Networks. 2019 abs/1906.04017 CoRR http://arxiv.org/abs/1906.04017 db/journals/corr/corr1906.html#abs-1906-04017

Sheroze Sheriffdeen Jean C. Ragusa Jim E. Morel Marvin L. Adams Tan Bui-Thanh Accelerating PDE-constrained Inverse Solutions with Deep Learning and Reduced Order Models. 2019 abs/1912.08864 CoRR http://arxiv.org/abs/1912.08864 db/journals/corr/corr1912.html#abs-1912-08864

Joshua Hansel Jean C. Ragusa Flux-corrected transport techniques applied to the radiation transport equation discretized with continuous finite elements. 179-195 2018 354 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2017.10.029 db/journals/jcphy/jcphy354.html#HanselR18

Michael W. Hackemack Jean C. Ragusa Quadratic serendipity discontinuous finite element discretization for SN transport on arbitrary polygonal grids. 188-212 2018 374 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2018.05.032 https://www.wikidata.org/entity/Q129816087 db/journals/jcphy/jcphy374.html#HackemackR18

R. S. Jeffers József Kópházi Matthew D. Eaton François Févotte Frank Hülsemann Jean C. Ragusa Goal-based h-adaptivity of the 1-D diamond difference discrete ordinate method. 179-200 2017 335 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2017.01.037 db/journals/jcphy/jcphy335.html#JeffersKEFHR17

Peter G. Maginot Jean C. Ragusa Jim E. Morel High-order solution methods for grey discrete ordinates thermal radiative transfer. 719-746 2016 327 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2016.09.055 db/journals/jcphy/jcphy327.html#MaginotRM16

Marc O. Delchini Jean C. Ragusa Ray A. Berry Viscous Regularization for the Non-equilibrium Seven-Equation Two-Phase Flow Model. 764-804 2016 69 J. Sci. Comput. 2 https://doi.org/10.1007/s10915-016-0217-6 db/journals/jscic/jscic69.html#DelchiniRB16

J. R. Peterson Jim E. Morel Jean C. Ragusa Residual Monte Carlo for the One-Dimensional Particle Transport Equation. 2016 38 SIAM J. Sci. Comput. 6 https://doi.org/10.1137/16M1057619 db/journals/siamsc/siamsc38.html#PetersonMR16

Jean C. Ragusa Discontinuous finite element solution of the radiation diffusion equation on arbitrary polygonal meshes and locally adapted quadrilateral grids. 195-213 2015 280 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2014.09.013 db/journals/jcphy/jcphy280.html#Ragusa15

Marc O. Delchini Jean C. Ragusa Jim E. Morel Entropy-based artificial viscosity stabilization for non-equilibrium Grey Radiation-Hydrodynamics. 293-313 2015 296 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2015.04.039 db/journals/jcphy/jcphy296.html#DelchiniRM15

Don E. Bruss Jim E. Morel Jean C. Ragusa S2SA preconditioning for the Sn equations with strictly nonnegative spatial discretization. 706-719 2014 273 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2014.05.022 db/journals/jcphy/jcphy273.html#BrussMR14

Bruno Turcksin Jean C. Ragusa Discontinuous diffusion synthetic acceleration for Sn transport on 2D arbitrary polygonal meshes. 356-369 2014 274 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2014.05.044 db/journals/jcphy/jcphy274.html#TurcksinR14

Guido Kanschat Jean C. Ragusa A Robust Multigrid Preconditioner for SNDG Approximation of Monochromatic, Isotropic Radiation Transport Problems. 2014 36 SIAM J. Sci. Comput. 5 https://doi.org/10.1137/13091600X db/journals/siamsc/siamsc36.html#KanschatR14

Yunhuang Zhang Jean C. Ragusa Jim E. Morel Iterative performance of various formulations of the SPNSPN equations. 558-572 2013 252 J. Comput. Phys. https://doi.org/10.1016/j.jcp.2013.06.009 db/journals/jcphy/jcphy252.html#ZhangRM13

Jean C. Ragusa Jean-Luc Guermond Guido Kanschat A robust SN-DG-approximation for radiation transport in optically thick and diffusive regimes. 1947-1962 2012 231 J. Comput. Phys. 4 https://doi.org/10.1016/j.jcp.2011.11.017 db/journals/jcphy/jcphy231.html#RagusaGK12

Peter G. Maginot Jim E. Morel Jean C. Ragusa A non-negative moment-preserving spatial discretization scheme for the linearized Boltzmann transport equation in 1-D and 2-D Cartesian geometries. 6801-6826 2012 231 J. Comput. Phys. 20 https://doi.org/10.1016/j.jcp.2012.06.018 db/journals/jcphy/jcphy231.html#MaginotMR12

Yaqi Wang Jean C. Ragusa Standard and goal-oriented adaptive mesh refinement applied to radiation transport on 2D unstructured triangular meshes. 763-788 2011 230 J. Comput. Phys. 3 https://doi.org/10.1016/j.jcp.2010.10.018 db/journals/jcphy/jcphy230.html#WangR11

Jean C. Ragusa Yaqi Wang A two-mesh adaptive mesh refinement technique for SN neutral-particle transport using a higher-order DGFEM. 3178-3188 2010 233 J. Comput. Appl. Math. 12 https://doi.org/10.1016/j.cam.2009.12.020 db/journals/jcam/jcam233.html#RagusaW10

Marvin L. Adams Michael P. Adams David Andrs Patrick Behne Ray A. Berry Don E. Bruss Tan Bui-Thanh Youngsoo Choi Marc O. Delchini Matthew D. Eaton François Févotte Jean-Luc Guermond Michael W. Hackemack Ian Halvic Joshua Hansel Milan Hanus Logan H. Harbour Zachary Hardy Daryl Hawkins Quincy A. Huhn Frank Hülsemann R. S. Jeffers Guido Kanschat József Kópházi Peter G. Maginot Jim E. Morel Dinh Quoc Dang Nguyen J. R. Peterson Bojan Popov Gavin D. Portwood Sheroze Sheriffdeen Mauricio E. Tano Bruno Turcksin Jan I. C. Vermaak Yaqi Wang Yunhuang Zhang