Tutorial 8B: Multiphysics Coupling for an SFR Pin Bundle

note

This tutorial is under construction and should be available in early 2022.

In this tutorial, you will learn how to:

Couple OpenMC, NekRS, and MOOSE for steady-state multiphysics simulations

This tutorial describes how to use Cardinal to perform temperature, density, and fission power coupling of OpenMC, NekRS, and MOOSE for a 7-pin Sodium Fast Reactor (SFR) pin bundle. This tutorial is an adaptation of the SFR modeling performed in Novak et al. (2022). For pedagogical purposes, several simplifications are made in the formulation of the geometry, material properties, and operating conditions so that the emphasis of the computational model remains focused on the multiphysics coupling and data transfers.

Geometry and Computational Model

This section describes the geometry for a 7-pin SFR bundle. This geometry is a reduced-size version of the 271-pin Advanced Burner Reactor (ABR) metal driver fuel assemblies ANL (2007), with a few additional simplifications. Table 1 summarizes the relevant dimensions of the geometry with a comparison to the nominal ABR design.

Table 1: Geometric conditions for the ABR, based on ANL (2007)

Parameter	Value Used in Tutorial (cm)	Nominal ABR Value (cm)
Pellet diameter	0.7646	0.7647
Pin pitch	0.8966	0.8966
Clad thickness $t_c$	0.0587	0.0587
Wire diameter, $D_w$	0.103	0.103
Wire axial pitch, $L_w$	20.32	20.32
Duct thickness	0.1983	0.3966
Rod plenum height	0.0	121.07
Top reflector height	25.0	112.39
Bottom reflector height	25.0	35.76
Active height	60.96	85.82

MultiApps and Transfers

References

ANL. J. Cahalan and T. Fanning and M. Farmer and C. Grandy and E. Jini and T. Kim and R. Kellogg and L. Krajtl and S. Lomperski and A. Moisseytsev and Y. Momozaki and Y. Park and C. Reed and F. Salev and R. Seidensticker and J. Sienicki and Y. Tang and C. Tzanos and T. Wei and W. Yang and Y. Chikazawa. Technical Report ANL-AFCI-202, Argonne National Laboratory, 2007.

@TechReport{abr,
    author = "ANL",
    title = "{J. Cahalan and T. Fanning and M. Farmer and C. Grandy and E. Jini and T. Kim and R. Kellogg and L. Krajtl and S. Lomperski and A. Moisseytsev and Y. Momozaki and Y. Park and C. Reed and F. Salev and R. Seidensticker and J. Sienicki and Y. Tang and C. Tzanos and T. Wei and W. Yang and Y. Chikazawa}",
    institution = "Argonne National Laboratory",
    year = "2007",
    number = "ANL-AFCI-202"
}

A.J. Novak, P. Shriwise, R. Rahaman, P.K. Romano, E. Merzari, and D. Gaston. Coupled Monte Carlo Transport and Conjugate Heat Transfer for Wire-Wrapped Bundles Within the MOOSE Framework. In Proceedings of NURETH. 2022.

@InProceedings{novak2022,
    author = "Novak, A.J. and Shriwise, P. and Rahaman, R. and Romano, P.K. and Merzari, E. and Gaston, D.",
    title = "{Coupled {Monte} {Carlo} Transport and Conjugate Heat Transfer for Wire-Wrapped Bundles Within the {MOOSE} Framework}",
    booktitle = "{Proceedings of NURETH}",
    year = "2022"
}

References