Two-fluid equations for two-phase flows in moving systems

• Published in: Nuclear engineering and technology Vol. 51; no. 6; pp. 1504 - 1513
• Main Authors: Kim, Byoung Jae, Kim, Myung Ho, Lee, Seung Wook, Kim, Kyung Doo
• Format: Journal Article
• Language: English
• Published: Elsevier 01.09.2019; 한국원자력학회
• Subjects: 원자력공학
• ISSN: 1738-5733; 2234-358X
• DOI: 10.1016/j.net.2019.04.022

Recently, ocean nuclear reactors have received attention due to enhanced safety features. The movable and transportable characteristics distinguish ocean nuclear reactors from land-based nuclear reactors. Therefore, for safety/design analysis of the ocean reactor, the thermos-hydraulics must be investigated in the moving system. However, there are no studies reporting the general two-fluid equations that can be used for multi-dimensional simulations of two-phase flows in moving systems. This study is to systematically formulate the multi-dimensional two-fluid equations in the non-inertial frame of reference. To demonstrate the applicability of the formulated equations, we perform a total of six different simulations in 2D tanks with translational and/or rotational motions. Keywords: Ocean nuclear reactor, Thermal-hydraulics, Two-fluid equation, Moving system