A flexible linear diffusion acceleration to k-eigenvalue neutron transport with SN discontinuous finite element method
Conference
·
OSTI ID:23178669
- Reactor Physics Methods and Analysis Idaho National Laboratory, Idaho Falls, ID (United States)
- Computational Frameworks Idaho National Laboratory, IdahoFalls, ID (United States)
In this paper, we derive a flexible linear diffusion acceleration (LDA) for k-eigenvalue neutron transport discretized with discontinuous finite element method (DFEM) and discrete ordinates(SN). This LDA is based on our two pieces of previous works: the flexible non linear diffusion acceleration (NDA) for DFEM-SN and LDA for k-eigenvalue neutron transport using pre-conditioned Jacobian-free Newton-Krylov with self-adjoint angular flux (SAAF), continuous finite element method(CFEM), and SN. We point out the differences between LDA and NDA for DFEM-SN and the difference between DFEM-SN and SAAF-CFEM-SN for LDA. Numerical tests are presented to compare the convergence behaviour of NDA and LDA. (authors)
- Research Organization:
- American Nuclear Society - ANS, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 23178669
- Country of Publication:
- United States
- Language:
- English
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