Experimental benchmarking of cfd codes used in simulations of heat exchangers for nuclear-power applications
Автор: Bolshukhin Mikhail Aleksandrovich, Vasiliev Andrey Yurievich, Budnikov Aleksey Vladimirovich, Patrushev Dmitriy Nikolaevich, Romanov Roman Igorevich, Sveshnikov Dmitriy Nikolaevich, Sukhanovsky Andrey Nikolaevich, Frick Petr Gotlobovich
Журнал: Вычислительная механика сплошных сред @journal-icmm
Статья в выпуске: 4 т.5, 2012 года.
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This study is aimed to provide benchmark experimental data for CFD codes used in simulations of heat-exchangers for nuclear-power applications. The experimental results obtained in studying turbulent Raleigh–Benard convection in a rectangular tank with dimensions (where one of the horizontal dimensions ) are proposed as a benchmark. Experiments were carried out for a fixed Raleigh number and different values of aspect ratio Г and 1. It has been found that, for these aspect ratios, the large-scale circulation is characterized by different regimes. Numerical simulations made by ANSYS CFX for two cases (Г , and Г , ) provide relevant results not only for the mean flow but also for the spatial and temporal distribution of turbulent fluctuations. Long-time simulations are able to reproduce the dynamics of large-scale circulation, yet they require a remarkable increase of computation time for accurate comparison of flow characteristics.
Turbulent convection, convective heat exchange, cfd пакеты, cfd packages, benchmarks
Короткий адрес: https://sciup.org/14320644
IDR: 14320644
