Other Publications

A. Jivani, X. Huan, C. Safta, B.Y. Zhou, N.R. Gauger, “Uncertainty Quantification for a Turbulent Round Jet Using Multifidelity Karhunen-Loeve Expansions”, AIAA Scitech 2021 Forum (2021).
K. Lee, J. Ray, C. Safta, “Predictive Skill of Deep Learning Models Trained on Limited Sequence Data”, Sandia Technical Report, SAND2020-10958 (2020).
L. Sheps, Z.J. Buras, K. Au, J. Zador, C. Safta, “Rapid Assessment of Autoignition Propensity in Novel Fuels and Blends”, Sandia Technical Report, SAND2020-10342 (2020).
T.L. Bauer, W.E. Beyeler, P.D. Finley, R.F. Jeffers, C.D. Laird, M. Makvandi, A.V. Outkin, C. Safta, and K.M. Simonson, “Sandia’s Research in Support of COVID-19 Pandemic Response: Computing and Information Sciences”, Sandia Technical Report, SAND2020-9261 (2020).
C. Safta, J. Ray, E. Acquesta, T. Catanach, K. Chowdhary, B. Debusschere, E. Galvan, G. Geraci, M. Khalil, T. Portone, “Characterization of Partially Observed Epidemics – Application to COVID-19”, Sandia Technical Report, SAND2020-6563 (2020).
M. Khalil, J. Lao, C. Safta, H.N. Najm, “Transitional Markov Chain Monte Carlo Sampler in UQTk”, Sandia Technical Report, SAND2020-3166 (2020).
M. Salloum, C. Safta, E. Galvan, A.M. Smith, A.C. Brownlow, C. Lam, “Quantification of Uncertainty due to Random Insults in a Transmission Line with Digital Signal Inputs”, Sandia Technical Report, SAND2019-7485 (2019).
X. Huan, C. Safta, Z.P. Vane, G. Lacaze, J.C. Oefelein, H.N. Najm, “Uncertainty Propagation Using Conditional Random Fields in Large-Eddy Simulations of Scramjet Computations”, AIAA Scitech 2019 Forum (2019).
G. Geraci, F. Menhorn, X. Huan, C. Safta, Y. Marzouk, H.N. Najm, M.S. Eldred, “Progress in Scramjet Design Optimization Under Uncertainty Using Simulations of the HIFiRE Configuration”, AIAA Scitech 2019 Forum (2019).
X. Huan, G. Geraci, C. Safta, M.S. Eldred, K. Sargsyan, Z.P. Vane, J.C. Oefelein, H.N. Najm, “Multifidelity Statistical Analysis of Large Eddy Simulations in Scramjet Computations”, AIAA Scitech 2018 Forum (2018).
X. Huan, C. Safta, K. Sargsyan, G. Geraci, M.S. Eldred, Z. Vane, G. Lacaze, J.C. Oefelein, H.N. Najm, “Global Sensitivity Analysis and Quantification of Model Error for Large Eddy Simulation in Scramjet Design”, 19th AIAA Non-Deterministic Approaches Conference (2017).
B.J. Debusschere, K. Sargsyan, C. Safta, K. Chowdhary, “The Uncertainty Quantification Toolkit,”, Handbook of Uncertainty Quantification, R. Ghanem, D. Higdon, and H. Owhadi, Eds, pp 1807-1827, Springer (2017).
K. Morris, F. Rizzi, K. Sargsyan, K. Dahlgren, P. Mycek, C. Safta, O. Le Maître, O. Knio, “Scalability of Partial Differential Equations Preconditioner Resilient to Soft and Hard Faults”, International Conference on High Performance Computing (2016).
F. Rizzi, K. Morris, K. Sargsyan, P. Mycek, C. Safta, B.J. Debusschere, O. Le Maître, O. Knio, “ULFM-MPI Implementation of a Resilient Task-Based Partial Differential Equations Preconditioner”, FTXS ’16: Proceedings of the ACM Workshop on Fault-Tolerance for HPC at Extreme Scale (2016).
J.A. Templeton, M. Blaylock, S. Domino, J. Hewson, P.R. Kumar, J. Ling, H.N. Najm, A. Ruiz, C. Safta, K. Sargsyan, A. Stewart, G. Wagner, “Calibration and Forward Uncertainty Propagation for Large-eddy Simulations of Engineering Flows”, Sandia Technical Report, SAND2015-7938 (2015).
C. Safta, R.L. Chen, H.N. Najm, A. Pinar, J.-P. Watson, “Toward Using Surrogates to Accelerate Solution of Stochastic Electricity Grid Operations Problems”, 2014 North American Power Symposium (2014).
C. Safta, K. Chowdhary, K. Sargsyan, H.N. Najm, B.J. Debusschere, L. P. Swiler, and M. S. Eldred, “Uncertainty Quantification Methods for Model Calibration, Validation, and Risk Analysis”, 16th AIAA Non-Deterministic Approaches Conference (2014).
C. Safta, H.N. Najm, B.J. Debusschere, and R. D. Berry, “EGSim – a C++ toolkit for analysis of power grid systems”, Sandia Technical Report, SAND2013-2838 (2013).
G. Backus et al, “Risk Assessment of Climate Systems for National Security”, Sandia Technical Report, SAND2012-10554 (2012).
C. Safta, J. Ray, K. Sargsyan, S. Lefantzi, K. Cheng, and D. Crary, “Real-time characterization of partially observed epidemics using surrogate models”, Sandia Technical Report, SAND2011-6766 (2011).
J. Ray, R. Armstrong, C. Safta, B.J. Debusschere, B. A. Allan and H.N. Najm, “Computational frameworks for advanced combustion simulations”, Turbulent Combustion Modeling: Advances, New Trends and Perspectives, T. Echekki and E. Mastorakos, Eds, pp 407-437, Springer (2011).
K. Sargsyan, C. Safta, R. D. Berry, J. Ray, B.J. Debusschere, and H.N. Najm, “Efficient uncertainty quantification methodologies for high-dimensional climate land models”, Sandia Technical Report, SAND2011-8757 (2011).
K. Sargsyan, C. Safta, B.J. Debusschere, and H.N. Najm, “Uncertainty Quantification in the Presence of Limited Climate Model Data with Discontinuities”, IEEE International Conference on Data Mining, (2009).
H.N. Najm, J. Ray, C. Safta, Y. Marzouk, M. Valorani, and D. Goussis, “High-order AMR computations of reacting flow with adaptive reduction of chemical stiffness”, Journal of Physics: Conference Series, (2007).
H.N. Najm, J. Ortega, C. Safta, M. Valorani, D. Goussis, and M. Frenklach, “Adaptive Explicit Integration of Stiff Chemical Systems”, International Workshop on Model Reduction in Reacting Flow, (2007).
C. Safta, F. Ladeinde, X. Cai, and K. Alabi, “A Combined Level-Set/Mixture Fraction/Progress-Variable Approach for Partially-Premixed Turbulent Reacting Flows”, 45th AIAA Aerospace Sciences Meeting and Exhibit (2007).
C. Safta, F. Ladeinde, X. Cai, and K. Alabi, “A High-Fidelity Level-Set Flamelet Approach for Predicting Turbulent Reacting Flows”, 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit (2006).
C. Safta, K. Alabi, and F. Ladeinde, “Comparative advantages of high-order schemes for subsonic, transonic, and supersonic flows”, 44th AIAA Aerospace Sciences Meeting and Exhibit (2006).
C. Safta, K. Alabi, F. Ladeinde, X. Cai, B. Sekar, and B. Kiel, “Level-Set Flamelet/Large-Eddy Simulation of a Premixed Augmentor Flame Holder”, 44th AIAA Aerospace Sciences Meeting and Exhibit (2006).
F. Ladeinde, K. Alabi, C. Safta, and X. Cai, “The First High-Order CFD Simulation of Aircraft: Challenges and Opportunities”, 44th AIAA Aerospace Sciences Meeting and Exhibit (2006).
C. Safta and C.K. Madnia, “Finite Rate Chemistry Effects in Non-Premixed CH4/H2 Flames”, 42nd AIAA Aerospace Sciences Meeting and Exhibit (2004).
C. Safta and C. K. Madnia, “Unsteady Non-Premixed CH4/H2 Flame Structure: Detailed and Reduced Kinetic Models”, Proceedings of the Third Joint Meeting of the U.S. Sections of The Combustion Institute (2003).