The analysis of chaotic density-wave oscillations

Conference · Tue Jan 01 04:00:00 EST 1991 · Transactions of the American Nuclear Society; (United States)

OSTI ID:5779150

Takenaka, N ^[1]; Lahey, Jr, R T; Podowski, M Z ^[2]

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1. Kobe Univ. (Japan)
2. Rensselaer Polytechnic Inst., Troy, NY (United States)

The criteria for the occurrence of density-wave oscillations (DWO) in boiling channels are reasonably well understood. Instabilities of this type may occur in boiling water nuclear reactors (BWRs) and currently impose operational limits on plant operation. The purpose of this paper is to present an analysis of nonlinear DWO phenomena. In particular, it is shown that chaotic oscillations may occur during natural circulation operation conditions. The analysis is based on a one-dimensional homogeneous equilibrium model (HEM) of the two-phase flow in a boiling channel.

• OSTI ID: 5779150
• Report Number(s): CONF-910603--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 63
• Country of Publication: United States
• Language: English

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21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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99 GENERAL AND MISCELLANEOUS
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BOILING
BOUNDARY CONDITIONS
BWR TYPE REACTORS
CONVECTION
COOLING
DIFFERENTIAL EQUATIONS
ENERGY TRANSFER
ENRICHED URANIUM REACTORS
EQUATIONS
FLUID FLOW
FLUID MECHANICS
HEAT TRANSFER
HYDRAULICS
MASS TRANSFER
MATHEMATICAL MODELS
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NATURAL CONVECTION
NONLINEAR PROBLEMS
OPERATION
PHASE TRANSFORMATIONS
POWER REACTORS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTOR OPERATION
REACTOR SAFETY
REACTORS
SAFETY
SUBCOOLING
THERMAL REACTORS
TWO-PHASE FLOW
WATER COOLED REACTORS
WATER MODERATED REACTORS
WAVE PROPAGATION