Abstract This paper presents GOTHIC analyses of hydrogen deflagration tests performed in the framework of the OECD/NEA THAI program. The experiments were performed in one or two interconnected vessels under similar conditions, including cases with forced convection loops and both upward- and downward-propagating burns. To capture the influence of initial turbulence and flame wrinkling, a global burn enhancement factor was employed in the calculations. The simulations captured the overall propagation of the hydrogen burns and the pressurization rate. Overall agreement was reasonably good for the upward-propagating flames, but some dynamics in the second interconnected vessel were more challenging for GOTHIC to replicate, as the flame propagation speed was generally over-predicted with the global burn enhancement model. The benchmark exercise has helped to better understand the requirements for modeling hydrogen deflagrations in multiple interconnected volumes with initial turbulence, and can be used to improve guidance on hydrogen issues in nuclear safety analysis.

中文翻译：

---

OECD/NEA THAI 多容器氢爆燃试验的 GOTHIC 模拟

摘要 本文介绍了在 OECD/NEA THAI 计划框架内进行的氢爆燃试验的哥特式分析。实验是在一个或两个相互连接的容器中在类似条件下进行的，包括强制对流回路和向上和向下传播的燃烧的情况。为了捕捉初始湍流和火焰起皱的影响，计算中采用了全局燃烧增强因子。模拟捕获了氢燃烧的整体传播和加压速率。对于向上传播的火焰，总体一致性相当好，但第二个互连容器中的一些动力学对于 GOTHIC 复制更具挑战性，因为火焰传播速度通常被全局燃烧增强模型高估。