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首页> 外文会议>Seminar on Fission Gas Behaviour in Water Reactor Fuels Sep 26-29, 2000 Cadarache, France >MECHANISTIC MODELLING OF GASEOUS FISSION PRODUCT BEHAVIOUR IN UO_2 FUEL BY RTOP CODE
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MECHANISTIC MODELLING OF GASEOUS FISSION PRODUCT BEHAVIOUR IN UO_2 FUEL BY RTOP CODE

机译：UTP_2燃料中气态裂变产物行为的机理模拟。

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摘要

The current status of a mechanistic modelling by the RTOP code of the fission product behaviour in polycrystalline UO_2 fuel is described. An outline of the code and implemented physical models is presented. The general approach to code validation is discussed. It is exemplified by the results of validation of the models of fuel oxidation and grain growth. The different models of intragranular and intergranular gas bubble behaviour have been tested and the sensitivity of the code in the framework of these models has been analysed. An analysis of available models of the resolution of grain face bubbles is also presented. The possibilities of the RTOP code are presented through the example of modelling behaviour of WWER fuel over the course of a comparative WWER-PWR experiment performed at Halden and by comparison with Yanagisawa experiments.
机译：描述了通过多晶UO_2燃料中裂变产物行为的RTOP代码进行机械建模的当前状态。给出了代码概述和已实现的物理模型。讨论了代码验证的一般方法。燃料氧化和晶粒长大模型的验证结果可以证明这一点。测试了颗粒内和颗粒间气泡行为的不同模型，并分析了这些模型框架内代码的敏感性。还介绍了可用的晶粒面气泡分辨率模型的分析。通过在Halden进行的WWER-PWR比较实验过程中，并与Yanagisawa实验进行比较，通过对WWER燃料的建模行为示例，展示了RTOP代码的可能性。

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