Nonlinear dynamics of a nuclear-coupled boiling channel with forced flows

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)31-49
Journal / PublicationNuclear Engineering and Design
Volume179
Issue number1
Publication statusPublished - 1 Jan 1998
Externally publishedYes

Abstract

The nonlinear dynamics of a nuclear-coupled boiling channel with forced flows was explored on the basis of the Galerkin nodal approximation method for the channel fluid flow and point kinetics for the neutron field dynamics. The marginal stability boundary (MSB) for a Freon boiling channel predicted by the model agreed well with experimental data from previous available literature, thereby verifying the model accuracy. A strip of limit cycle oscillation on the unstable side of the boundary was found to be system dependent. The marginal stability boundaries for boiling water channels with/without nuclear-coupled effects were also obtained. Moreover, the characteristics of limit cycle oscillations on the boundary were investigated. Routes from limit cycle oscillation to chaotic oscillation were identified under high inlet subcooling conditions. The strange attractor found in this study was characterized by a correlation dimension of 1.69±0.01.

Citation Format(s)

Nonlinear dynamics of a nuclear-coupled boiling channel with forced flows. / Lin, Y.N.; Lee, J.D.; Pan, Chin.
In: Nuclear Engineering and Design, Vol. 179, No. 1, 01.01.1998, p. 31-49.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review