Proper Orthogonal Decomposition Mode Coefficient Interpolation: A Non-Intrusive Reduced-Order Model for Parametric Reactor KineticsIn this paper, a non-intrusive reduced-order model (ROM) for parametric
reactor kinetics simulations is presented. Time-dependent ROMs are notoriously
data intensive and difficult to implement when nonlinear multiphysics phenomena
are considered. These challenges are exacerbated when parametric dependencies
are included. The proper orthogonal decomposition mode coefficient
interpolation (POD-MCI) ROM presented in this work can be constructed directly
from lower-dimensional quantities of interest (QoIs) and is independent of the
underlying model. This greatly alleviates the data requirement of many existing
ROMs and can be used without modification on arbitrarily complex models or
experimental data. The POD-MCI ROM is demonstrated on a number of examples and
yields accurate characterizations of the QoIs within the selected parameter
spaces at extremely attractive computational speed-up factors relative to the
full-order models (FOMs).
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