Identifying MSR Multiphysics Modeling Challenges
| Main Author: | Kathryn Huff |
|---|---|
| Other Authors: | Piyush Sabharwall |
| Format: | Report eJournal |
| Bahasa: | eng |
| Terbitan: |
University of Illinois at Urbana-Champaign
, 2019
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/3354563 |
Daftar Isi:
- Solid fueled nuclear reactors differ from liquid fueled reactors with respect to many physical domains including neutronics, thermal hydraulics, and materials performance. Accordingly, liquid fueled reactors challenge the capabilities of conventional computational tools designed for modeling and simulating the physics of solid fueled reactors. These challenges compound one another in numerical simulations that model the coupling between physics, particularly in liquid fueled reactors in which the fuel circulates. In such reactors, neutron kinetics, fuel depletion, heat transport, and fluid flow couple together much more tightly, stiffening the interdependent system of partial differential equations (PDEs) driving reactor behavior. While solid fueled reactor simulation can accurately couple neutronics and thermal hydraulics through operator splitting techniques and loose coupling, such approaches cannot capture the tightly coupled multiphysics of reactors with circulating liquid fuel.
- This research was performed using funding received from Battelle Energy Alliance LLC, Idaho National Laboratory Standard Research Contract 214196.