Numerical research on oscillation of two-phase flow under rolling motion

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2 Scopus citations

Abstract

Two-phase flow instability and dynamics of a parallel multichannel system has been theoretically studied under periodic excitation induced by rolling motion in the present research. Based on the homogeneous flow model considering the rolling motion, the parallel multichannel model and system control equations are established by using the control volume integrating method. Gear method is used to solve the system control equations. The influences of the inlet, upward sections, and heating power on the flow instability under rolling motion have been analyzed. The marginal stability boundary (MSB) under rolling motion condition is obtained. The unstable regions occur in both low and high equilibrium quality and inlet subcooling regions. The multiplied period phenomenon occurs in the high equilibrium quality region and the chaos phenomenon appears on the right of MSB. The concept of stability space is presented.

Original languageEnglish
Title of host publication18th International Conference on Nuclear Engineering, ICONE18
DOIs
StatePublished - 2010
Event18th International Conference on Nuclear Engineering, ICONE18 - Xi'an, China
Duration: 17 May 201021 May 2010

Publication series

NameInternational Conference on Nuclear Engineering, Proceedings, ICONE
Volume2

Conference

Conference18th International Conference on Nuclear Engineering, ICONE18
Country/TerritoryChina
CityXi'an
Period17/05/1021/05/10

Keywords

  • Chaos
  • Intertube pulse
  • Multiplied period
  • Parallel multichannel
  • Rolling motion
  • Stability space
  • Two-phase flow instability

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