Richard Vasques

Assistant Professor of Nuclear Engineering

A Fokker-Planck acceleration technique for multiphysics problems with highly forward-peaked scattering


Ph.D. thesis


John J. Kuczek
Richard Vasques (Advisor), Ph.D. in Nuclear Engineering, The Ohio State University, Columbus, OH, 2021 Dec

Dissertation John J. Kuczek
Cite

Cite

APA   Click to copy
Kuczek, J. J. (2021, December). A Fokker-Planck acceleration technique for multiphysics problems with highly forward-peaked scattering (PhD thesis). (R. V. (Advisor), Ed.), Ph.D. in Nuclear Engineering. The Ohio State University, Columbus, OH.


Chicago/Turabian   Click to copy
Kuczek, John J. “A Fokker-Planck Acceleration Technique for Multiphysics Problems with Highly Forward-Peaked Scattering.” Edited by Richard Vasques (Advisor). Ph.D. in Nuclear Engineering. PhD thesis, The Ohio State University, 2021.


MLA   Click to copy
Kuczek, John J. “A Fokker-Planck Acceleration Technique for Multiphysics Problems with Highly Forward-Peaked Scattering.” Ph.D. in Nuclear Engineering, edited by Richard Vasques (Advisor), The Ohio State University, Dec. 2021.


BibTeX   Click to copy

@phdthesis{john2021a,
  title = {A Fokker-Planck acceleration technique for multiphysics problems with highly forward-peaked scattering},
  year = {2021},
  month = dec,
  address = {Columbus, OH},
  journal = {Ph.D. in Nuclear Engineering},
  school = {The Ohio State University},
  author = {Kuczek, John J.},
  editor = {(Advisor), Richard Vasques},
  month_numeric = {12}
}

[Picture]
Dr. John Kuczek
ABSTRACT: This work characterizes a new acceleration technique for multiphysics problems with highly forward-peaked scattering. The Fokker-Planck equation, which is an asymptotic limit of the transport equation in highly forward-peaked settings, is modified and used to accelerate the transport equation in a high-order/low-order acceleration scheme. The modified Fokker- Planck equation preserves the angular flux and flux moments of the transport equation and can be coupled to multiphysics solves. Coupling the modified Fokker-Planck equation with multiphysics isolates expensive transport sweeps. We observe up to two times speed up in wall-clock time when using this new technique compared to multiphysics coupling using the standard Fokker-Planck Synthetic Acceleration technique.