Validation of Turbulence Models for Analysis of a Single-Phase Turbulent Natural Convection

Title & Authors
Validation of Turbulence Models for Analysis of a Single-Phase Turbulent Natural Convection
Song, Ik-Joon; Shin, Kyung-Jin; Kim, Jungwoo; Park, Ik Kyu; Lee, Seung-Jun;

Abstract
The objective of this study is to validate the performance of the current $\small{k-{\epsilon}}$ turbulence model for a single-phase turbulent natural convection, which has been considered an important phenomenon in nuclear safety. As a result, the natural convection problems in the 2D and 3D cavities previously studied are calculated by using the ANSYS Fluent software. The present results show that the current $\small{k-{\epsilon}}$ turbulent model accounting for the buoyancy effect is in good agreement with the previous results for the natural convection problems in the 2D and 3D cavities although some improvements should be required to get better prediction.
Keywords
$\small{k-{\epsilon}}$ turbulence model;turbulent natural convection;nuclear safety;two- and three-dimensional cavities;
Language
Korean
Cited by
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