Fluid-Structure Interaction (FSI) is a significant phenomenon in most nuclear reactors, causing effects such as Flow-Induced Vibration (FIV) and thermally-driven Core-Radial Expansion (CRE). We demonstrate that Cardinal, an open-source coupling of NekRS and OpenMC to MOOSE, can be used for modelling FSI by coupling the Tensor Mechanics Module from the Multiphysics Object Oriented Simulation Environment (MOOSE) to NekRS's Arbitrary Lagrangian-Eulerian (ALE) solver. The solid mechanics-thermal hydraulics coupling is implemented using efficient in-memory coupling and data transfers. We provide a preliminary demonstration of these capabilities with a 3-D FSI benchmark for an elastic block in crossflow.
@article{arxiv.2308.11777,
title = {A Preliminary Fluid-Structure Coupling of NekRS and MOOSE via Cardinal},
author = {A. Chaube and A. J. Novak and H. Yuan and E. Merzari and D. R. Shaver and P. F. Fischer and C. S. Brooks},
journal= {arXiv preprint arXiv:2308.11777},
year = {2023}
}
Comments
The International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, 2023