Grants per year
Personal profile
Research Interests
Computational method of neutron transport, nuclear reactor physics, reliability and risk assessment.
Professor Lewis's research has included combining finite elements with other methods for the solution of the Boltzmann equation for neutron transport problems in six-dimensional space-angle-energy phase space. Applications are primarily to the simulation of neutron transport in nuclear reactor cores.
His current investigations are focused on neutron transport methods for treating the complex interactions between fuel-coolant lattice structures and more global effects in large power reactor cores. Under investigation are hybrid finite element and finite subelement formulations for treating spatial variables, tailored spherical harmonic expansions in angle, and preconditioned Krylov algorithms for the solution response matrix methods on parallel computers.
A second area of interest is reliability and risk assessment, focusing on how it relates to the engineering design process and particularly on the complex relationships between how technical experts and the public perceive the risks that accompany modern technology.
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Grants
- 1 Finished
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Next Generation Variational Nodal Methods with Homogenization Reduced or Eliminated
Lewis, E. E. (PD/PI)
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
10/1/10 → 9/30/12
Project: Research project
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Generalized Partitioned Matrix Acceleration for Variational Nodal Diffusion Method
Wang, Y., Li, Y., Zhang, T., Lewis, E. E., Smith, M. A., Yang, W. S. & Wu, H., Jun 3 2019, In: Nuclear Science and Engineering. 193, 6, p. 652-662 11 p.Research output: Contribution to journal › Article › peer-review
5 Scopus citations -
Three-dimensional variational nodal method parallelization for pin resolved neutron transport calculations
Wang, Y., Zhang, T., Lewis, E. E., Yang, W. S., Smith, M. A. & Wu, H., Nov 2019, In: Progress in Nuclear Energy. 117, 102991.Research output: Contribution to journal › Article › peer-review
Open Access9 Scopus citations -
Acceleration of within group iteration for pin-by-pin calculations
Zhang, T., Lewis, E. E., Smith, M. A., Yang, W. S., Wang, Y. & Wu, H., Feb 2018, In: Annals of Nuclear Energy. 112, p. 225-235 11 p.Research output: Contribution to journal › Article › peer-review
6 Scopus citations -
Generalized partitioned matrix acceleration of variational nodal method
Wang, Y., Zhang, T., Lewis, E. E., Yang, W. S., Smith, M. A. & Wu, H., 2018, In: Transactions of the American Nuclear Society. 118, p. 907-910 4 p.Research output: Contribution to journal › Conference article › peer-review
4 Scopus citations -
Generalized partitioned matrix acceleration of variational nodal method
Wang, Y., Zhang, T., Lewis, E. E., Yang, W. S., Smith, M. A. & Wu, H., 2018, AISTech 2018 Proceedings - Iron and Steel Technology Conference and Exposition. Association for Iron and Steel Technology, AISTECH, p. 907-910 4 p. (AISTech - Iron and Steel Technology Conference Proceedings; vol. 2018-May).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution