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**Harvard**

Demazière, C., Dykin, V. och Jareteg, K. (2017) *Development of a point-kinetic verification scheme for nuclear reactor applications*.

** BibTeX **

@article{

Demazière2017,

author={Demazière, Christophe and Dykin, Victor and Jareteg, Klas},

title={Development of a point-kinetic verification scheme for nuclear reactor applications},

journal={Journal of Computational Physics},

issn={0021-9991},

volume={339},

pages={396–411},

abstract={In this paper, a new method that can be used for checking the proper implementation of time- or frequency-dependent neutron transport models and for verifying their ability to recover some basic reactor physics properties is proposed. This method makes use of the application of a stationary perturbation to the system at a given frequency and extraction of the point-kinetic component of the system response. Even for strongly heterogeneous systems for which an analytical solution does not exist, the point-kinetic component follows, as a function of frequency, a simple analytical form. The comparison between the extracted point-kinetic component and its expected analytical form provides an opportunity to verify and validate neutron transport solvers. The proposed method is tested on two diffusion-based codes, one working in the time domain and the other working in the frequency domain. As long as the applied perturbation has a non-zero reactivity effect, it is demonstrated that the method can be successfully applied to verify and validate time- or frequency-dependent neutron transport solvers. Although the method is demonstrated in the present paper in a diffusion theory framework, higher order neutron transport methods could be verified based on the same principles.},

year={2017},

keywords={Computational verification and validation; Time-dependent neutron transport; Frequency-dependent neutron transport; Diffusion theory; Neutron fluctuations; Neutron noise; Point-kinetics},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 248689

A1 Demazière, Christophe

A1 Dykin, Victor

A1 Jareteg, Klas

T1 Development of a point-kinetic verification scheme for nuclear reactor applications

YR 2017

JF Journal of Computational Physics

SN 0021-9991

VO 339

AB In this paper, a new method that can be used for checking the proper implementation of time- or frequency-dependent neutron transport models and for verifying their ability to recover some basic reactor physics properties is proposed. This method makes use of the application of a stationary perturbation to the system at a given frequency and extraction of the point-kinetic component of the system response. Even for strongly heterogeneous systems for which an analytical solution does not exist, the point-kinetic component follows, as a function of frequency, a simple analytical form. The comparison between the extracted point-kinetic component and its expected analytical form provides an opportunity to verify and validate neutron transport solvers. The proposed method is tested on two diffusion-based codes, one working in the time domain and the other working in the frequency domain. As long as the applied perturbation has a non-zero reactivity effect, it is demonstrated that the method can be successfully applied to verify and validate time- or frequency-dependent neutron transport solvers. Although the method is demonstrated in the present paper in a diffusion theory framework, higher order neutron transport methods could be verified based on the same principles.

LA eng

DO 10.1016/j.jcp.2017.03.020

LK http://www.sciencedirect.com/science/article/pii/S0021999117302152

OL 30