文章基本信息

标题：Analysis of Unsteady Behaviour of Natural Circulation Helium Loop
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作者：Matej Vach ; Branislav Knížat ; Marek Mlkvik 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2020
卷号：328
页码：1-7
DOI：10.1051/matecconf/202032803009
语种：English
出版社：EDP Sciences
摘要：This paper deals with the one-dimensional unsteady fluid flow model of the natural circulation loop. The presented model represents the experimental facility Helium Loop STU which is the physical model of an emergency coolant system of a nuclear reactor. The governing equations are solved according both Euler and Lagrange approaches on two parallel computational grids. Linearization of equations and semi-implicit discretization scheme are used to enhance the algorithm effectiveness. The simulation results were compared to experimental data. The model can be considered as high-accurate in comparison with experimental data (relative error 1.14÷1.15 % at specified time interval).