One-dimensional oxygen transport relation is indispensable to study the oxygen distribution in the LBE-cooled system with an oxygen control device. In this paper, a numerical research is carried out to study the oxygen transport characteristics in a gas-phase oxygen control device, including the static case and dynamic case. The model of static oxygen control is based on the two-phase VOF model and the results agree well with the theoretical expectation. The model of dynamic oxygen control is simplified and the gas-liquid interface is treated as a free surface boundary with a constant oxygen concentration. The influences of the inlet and interface oxygen concentration, mass flow rate, temperature, and the inlet pipe location on the mass transfer characteristics are discussed. Based on the results, an oxygen mass transport relation considering the temperature dependence and velocity dependence separately is obtained. The relation can be used in a one-dimensional system analysis code to predict the oxygen provided by the oxygen control device, which is an important part of the integral oxygen mass transfer models.

一维氧气传输关系对于研究带有氧气控制装置的 LBE 冷却系统中的氧气分布是必不可少的。本文对气相氧气控制装置中的氧气输运特性进行了数值研究，包括静态情况和动态情况。静态氧控制模型基于两相VOF模型，结果与理论预期吻合较好。简化了动态氧控制模型，将气液界面视为氧浓度恒定的自由表面边界。讨论了入口和界面氧浓度、质量流量、温度和入口管道位置对传质特性的影响。根据结果​​，获得了分别考虑温度依赖性和速度依赖性的氧传质关系。该关系式可用于一维系统分析代码中预测氧气控制装置提供的氧气，这是整体氧气传质模型的重要组成部分。