This study was conducted to investigate the effect of absorption coefficient models on the P1 radiation model for a premixed hydrogen flame containing the water vapor. A CFD combustion simulation analysis was performed using XiFoam, one of the open-source CFD solvers in OpenFOAM. The solver using the flamelet combustion model has been modified to implement radiative heat transfer. The absorption coefficient models used in this study the grey-mean model and constant model, and for comparison, case without radiation was added. This CFD simulation study consisted of benchmarking the THAI HD-15 and HD-22 experiments. The difference between the two tests is the inclusion of water vapor in the condition before ignition. In the case of the HD-22 experiment containing water vapor in the initial condition, the simulation results show that the grey-mean absorption coefficient model has a strong influence on the temperature decrease of the flame and on the change in pressure inside the vessel.

本研究旨在研究吸收系数模型对含有水蒸气的预混氢火焰的 P1 辐射模型的影响。使用 OpenFOAM 中的开源 CFD 求解器之一 XiFoam 进行了 CFD 燃烧模拟分析。使用小火焰燃烧模型的求解器已经过修改以实现辐射传热。本研究中使用的吸收系数模型为灰色平均模型和常数模型，为了比较，增加了无辐射的情况。该 CFD 模拟研究包括对 THAI HD-15 和 HD-22 实验进行基准测试。两种测试的区别在于点火前的条件下是否包含水蒸气。在 HD-22 实验的初始条件下含有水蒸气的情况下，