DEVELOPMENT OF COMPUTER CODE SYSTEM THALES FOR THERMAL-HYDRAULIC ANALYSIS OF CORE MELTDOWN ACCIDENT, (I): OUTLINES OF CODE SYSTEM AND ANALYTICAL MODELS.

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作者
Abe, Kiyoharu [1 ]
Nishi, Makoto [1 ]
Watanabe, Norio [1 ]
Kudo, Kazuo [1 ]
机构
[1] JAERI, Jpn, JAERI, Jpn
关键词
MATHEMATICAL TECHNIQUES - Estimation - NUCLEAR REACTORS; PRESSURIZED WATER - Core Disruptive Accident - RISK STUDIES - Assessment;
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摘要
THALES is a computer code system for the thermal-hydraulic analysis of the core meltdown accident which is the risk-dominant accident of LWRs. A new analysis technique of hydraulics in the primary cooling system was developed and used in THALES-P for accurate estimation of water level in water-steam mixture and shorter computer time, which are necessary for the core meltdown analysis. This report describes the outlines of the THALES code system, as well as the mathematical modeling and sample run results of the above-mentioned codes.
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页码:1035 / 1046
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