Argonne National Laboratory

Tanju Sofu

Manager, Engineering Analysis Department
- Nuclear Engineering

Tanju Sofu is the manager of the Engineering Analysis Department in Argonne's Nuclear Engineering Division.His responsibilities include technical leadership and programmatic guidance for a broad range of activities such as engineering simulations, safety analyses, and risk assessments of nuclear reactor systems and fuel cycle facilities; development of advanced modeling and simulation methods and codes; advancement of diagnostics and control strategies for nuclear reactor plant performance analysis; development of innovative nuclear reactor concepts; and process modeling for emerging (non-nuclear) energy technologies.

Dr. Sofu also coordinates the multilaboratory activities for the Fast Reactor Methods and Safety Research and Development technical areas under the U.S. Department of Energy's Advanced Reactor Technologies program. He serves as the co-chair of Organization for Economic Co-operation and Development Nuclear Energy Agency's Generation-IV International Forum Risk and Safety Working Group and the Safety Design Criteria Task Force.

Dr. Sofu joined Argonne in 1992 as a postdoctoral appointee after receiving his Ph.D. degree in nuclear engineering from University of Tennessee in Knoxville. During his tenure at Argonne, Dr. Sofu has contributed to a number of nuclear and non-nuclear projects, focusing on development of simulation models for engineering system analyses involving multidimensional, multiscale, multi-physics phenomena. His technical contributions include a wide range of large-scale computational physics and fluid dynamics simulations on high-performance computing platforms for design optimizations, model validations, and safety analyses.

Publications and Patents

  • "A Review of Inherent Safety Characteristics of Metal Alloy Sodium-Cooled Fast Reactor Fuel Against Postulated Accidents," T. Sofu (invited article), Nuclear Engineering and Technology, 47, Issue 3, Pages 227–239, April 2015.
  • "Regulatory Technology Development Plan–Sodium Fast Reactor Mechanistic Source Term Development," D. Grabaskas, A. Brunett, M. Bucknor, J. Sienicki, T. Sofu, ANL-ART-3, Argonne National Laboratory, February 28, 2015.
  • “Current Status of Collaboration for GIF Sodium-cooled Fast Reactor System,” D. Hahn, R. Hill, T. Sofu, C. Lee, J. Sienicki, N. Chauvin, Proceedings of 2012 GIF Symposium, ISBN 978-92-64-99199-6, OECD (2012).
  • “Safety Design Criteria for Generation-IV sodium-cooled fast reactor system,” R. Nakai and T. Sofu, Proceedings of 2012 GIF Symposium, ISBN 978-92-64-99199-6, OECD (2012).
  • “Sodium Fast Reactor Research Plan,” M. Denman, J. LaChance, T. Sofu, G. Flanagan, R. Wigeland and R. Bari, Transactions of American Nuclear Society, 2012 ANS Winter Meeting, November 11-15, 2012.
  • “Benchmark Specifications for EBR-II Shutdown Heat Removal Tests,” T. Sofu and L. L. Briggs, 2012 International Congress on the Advances in Nuclear Power Plants (ICAPP’12), Chicago, Illinois, June 24-28, 2012.
  • “Parametric Analysis of Thermal Stratification during the Monju Turbine Trip Test,” T. Sofu, 2012 International Congress on the Advances in Nuclear Power Plants (ICAPP’12), Chicago, Illinois, June 24-28, 2012.
  • “Analysis of the Phenix End-of-Life Natural Convection Test with SAS4A/SASSYS-1,” J. W. Thomas, T. H. Fanning, F. E. Dunn, T. Sofu, 2012 International Congress on the Advances in Nuclear Power Plants (ICAPP’12), Chicago, Illinois, June 24-28, 2012.
  • “GIF Sodium Fast Reactor Project R&D on Safety and Operation,” A. Vasile, T. Sofu, H. Y. Jeong, T. Sakai, 2012 International Congress on the Advances in Nuclear Power Plants (ICAPP’12), Chicago, Illinois, June 24-28, 2012.
  • “Nuclear Reactor Thermal Hydraulics,” T. Sofu, 48th Annual Technical Meeting of Society of Engineering Sciences (SES-2011), Northwestern University, Evanston, Illinois, October 12-14, 2011.
  • “Fundamentals of Nuclear Safety and Their Application in Design and Operation,” W. Deitrich and T. Sofu, 48th Annual Technical Meeting of Society of Engineering Sciences (SES-2011), Northwestern University, Evanston, Illinois, October 12-14, 2011.
  • “Sodium-cooled Fast reactor (SFR) Safety,” T. Sofu, International Seminars on Nuclear War and Planetary Emergencies – 43rd Session (Science and Culture: Nuclear Strategy and Peace Technology), R. Ragaini (editor), page 123, World Scientific Publishing Company (June 8, 2011).
  • “Analysis of Thermal Stratification in the Upper Plenum of the Monju Reactor Vessel,” T. Sofu and J. W Thomas, 14th International Topical Meeting on Nuclear Reactor Thermal-hydraulics, (NURETH-14), Toronto, Ontario, Canada, September 25-30, 2011.
  • “Safety Analysis of the Target Design with Electron Accelerator,” E. Merzari, T. Sofu, Y. Gohar, and Z. Zhong, International Topical Meeting on Nuclear Applications of Accelerators (ACCAPP-2011), Knoxville, Tennessee, April 3-7, 2011.
  • “TREAT Experiments Relational Database,” A. E. Wright, T. H. Bauer, P. H. Froehle, T. Sofu, Trans. Amer. Nucl. Soc., ANS Winter Meeting, Las Vegas, Nevada, November 7-11, 2010.
  • “Pressure-Flow Scour Prediction using Computational Fluid Dynamics with a Porous Media Formulation and a Moving-Grid Approach,” S. Lottes, T. Sofu, K. Kerenyi. J. Guo, B. Afzal, and B. Tulimilli, 2010 National Hydraulics Engineering Conference, Park City, Utah, August 31 to September 3, 2010.
  • “Combined Underhood Thermal and External Aerodynamic Analyses,” T. Sofu and L. K. Hwang, Aerodynamics of Heavy Vehicles III: Trucks, Buses and Trains, Potsdam, Germany, September 12-17, 2010.
  • “Experience with a High-Fidelity Multiphysics Computational Framework: A Case Study on LWR Fuel Reliability,” T. Sofu, Verification & Validation for Nuclear Systems Analysis Workshop – II, Myrtle Beach, South Carolina, May 24-28, 2010.
  • “Modeling of Thermal Stratification in Sodium Fast Reactor Outlet Plenums during Loss of Flow Transients,” T. H. Fanning and T. Sofu, Proc. International Conference on Fast Reactors and Related Fuel Cycles: Challenges and Opportunities (FR09), Kyoto, Japan, December 7-11, 2009.
  • “Analysis of a Hypothetical Partial Loss-of-Coolant Accident in the University of Wisconsin TRIGA-Fueled Research Reactor,” E. E. Feldman, T. Sofu, J. E. Matos, RERTR 2009 – 31st International Meeting on Reduced Enrichment for Research and Test Reactors, Beijing, China, November 1-5, 2009.
  • “Applicability of Commercial CFD Tools for Assessment of Heavy-Vehicle Aerodynamic Characteristics,” W. D. Pointer, T. Sofu, J. Chang, D. P. Weber, The Aerodynamics of Heavy Vehicles-II: Trucks, Buses, and Trains, pp349-361, F. Browand, R. McCallen, J. Ross editors, Springer (2009).
  • “Using Supercomputers to Determine Bridge Loads,” K. Kerenyi, T. Sofu, and J. Guo, Public Roads, September/October 2008, Vol. 72, No. 2, pp28-34 (2008).
  • “Analysis of the BWR Fuel Assembly Boiling Test BFBT Void Distribution Using a Two-Phase Computational Fluid Dynamics Model,” D. Pointer, A. Tentner, T. Sofu, D. Weber, S. Lo, A. Splaswski, International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-12), September 30 - October 4, 2007, Pittsburgh, Pennsylvania (2007).
  • “Prediction of Boiling Water Reactor Assembly Void Distributions Using a Two-Phase Computational Fluid Dynamics Model,” W. D. Pointer, A. Tentner, T. Sofu, S. Lo, A. Splawski, Proceedings of the 16th Intl. Conf. on Nuclear Engineering (ICONE-16), July 17-20, 2008, Orlando, Florida (2008).
  • “Innovative Solutions: Advanced Technologies and Equipment to Resolve Hydraulic Issues: Computational Fluid Dynamics for Bridge Hydraulics,” T. Sofu (ANL) and K. Kerenyi (FHWA), 2008 National Hydraulic Engineering Conference, Partnering for Progress in a Changing Environment, Portland, Maine, August 25 - 29, 2008.
  • “High Fidelity LWR Analysis with the Numerical Nuclear Reactor,” D. P. Weber, T. Sofu, et. al, Nuclear Science and Engineering, 155, 395-408 (2007).
  • “Multi-Physics Analysis of an Electron Target for the KIPT Subcritical Assembly,” T.Sofu, Y.Gohar, H. Belch, Z.Zhong, D. Naberezhnev, XX International Workshop on Charged Particle Accelerators (IWCPA-2007), September 9-15, 2007, Alushta, Ukraine (2007).