TY - GEN

T1 - Analysis and numerical solution for multi-physics coupling of neutron diffusion and thermomechanics in spherical fast burst reactors

AU - Kadioglu, Samet Y.

AU - Knoll, Dana A.

AU - De Oliveira, Cassiano

PY - 2009

Y1 - 2009

N2 - Coupling neutronics to thermomechanics is important for the analysis of fast burst reactors, because the criticality study of fast burst reactors depends on the thermomechanical behavior of fuel materials. For instance, the shut down mechanism or the transition between super and sub-critical states are driven by the fuel material expansion or contraction. The material expansion or contraction is due to the temperature gradient which results from fission power. In this paper, we introduce a numerical model for coupling of neutron diffusion and thermomechanics in fast burst reactors. We perform non-dimensional analysis of the coupled system which provides insight into the behavior of the transient. We studied material behavior corresponding to different levels of reactivity insertion.

AB - Coupling neutronics to thermomechanics is important for the analysis of fast burst reactors, because the criticality study of fast burst reactors depends on the thermomechanical behavior of fuel materials. For instance, the shut down mechanism or the transition between super and sub-critical states are driven by the fuel material expansion or contraction. The material expansion or contraction is due to the temperature gradient which results from fission power. In this paper, we introduce a numerical model for coupling of neutron diffusion and thermomechanics in fast burst reactors. We perform non-dimensional analysis of the coupled system which provides insight into the behavior of the transient. We studied material behavior corresponding to different levels of reactivity insertion.

KW - Fast burst reactors

KW - Multi-physics analysis

KW - Non-dimensional analysis

KW - Numerical coupling models

UR - http://www.scopus.com/inward/record.url?scp=74549142903&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:74549142903

SN - 9781615673490

T3 - American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009

SP - 1550

EP - 1559

BT - American Nuclear Society - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009

T2 - International Conference on Mathematics, Computational Methods and Reactor Physics 2009, M and C 2009

Y2 - 3 May 2009 through 7 May 2009

ER -