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A Fokker-Planck Acceleration Technique For Multiphysics Problems with Highly Forward-Peaked Scattering

Kuczek, John Joseph, II
http://rave.ohiolink.edu/etdc/view?acc_num=osu1638362021031608

Abstract Details

2021, Doctor of Philosophy, Ohio State University, Nuclear Engineering.
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.
Richard Vasques (Advisor)
Tunc Aldemir (Committee Member)
Andre Palmer (Committee Member)
Barry Ganapol (Committee Member)
John Horack (Committee Member)
121 p.
Mathematics; Nuclear Engineering

Recommended Citations

Citations

  • Kuczek, II, J. J. (2021). A Fokker-Planck Acceleration Technique For Multiphysics Problems with Highly Forward-Peaked Scattering [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1638362021031608

    APA Style (7th edition)

  • Kuczek, II, John. A Fokker-Planck Acceleration Technique For Multiphysics Problems with Highly Forward-Peaked Scattering. 2021. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1638362021031608.

    MLA Style (8th edition)

  • Kuczek, II, John. "A Fokker-Planck Acceleration Technique For Multiphysics Problems with Highly Forward-Peaked Scattering." Doctoral dissertation, Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1638362021031608

    Chicago Manual of Style (17th edition)

osu1638362021031608
149
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This open access ETD is published by The Ohio State University and OhioLINK.
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