The paper is devoted to the analysis of the turbulent flame development inside a confined vessel filled with the combustible gaseous mixture and related pressure build-up. Detailed numerical modeling is implemented to reveal mechanisms of overpressure formation, and it is demonstrated that peak pressure inside the vessel can exceed adiabatic estimations. Instantaneous maximum pressure values turn out to be dependent on the turbulence intensity, and the physical mechanism defining this behavior is shown to be related to the peculiarities of the acoustic field developing during mixture burnout. Obtained results are of crucial importance for the design of combustion chambers and the elaboration of measures for explosion hazard mitigation.

中文翻译：

---

约束内近极限湍流氢气-空气燃烧引起的动态载荷


本文致力于分析充满可燃气体混合物的密闭容器内的湍流火焰发展以及相关的压力积聚。实施详细的数值模型以揭示超压形成的机制，并证明容器内的峰值压力可以超过绝热估计。瞬时最大压力值取决于湍流强度，并且定义这种行为的物理机制被证明与混合物燃尽期间形成的声场的特性有关。获得的结果对于燃烧室的设计和制定减轻爆炸危险的措施至关重要。