The influence of an imposed magnetic field upon the behavior of a reacting flow under hydrogen-methane moderate or intense low oxygen dilution regime is investigated numerically. This is achieved through addition of a series of baffles close to the inlet nozzles of a well-characterized moderate or intense low oxygen dilution burner and applying variable intensity magnetic field therein. The resultant combusting flow under magneto-hydrodynamic effects is modeled using a standard RANS scheme with the inclusion of detailed chemistry (GRI. 2.1.1), eddy dissipation concept model with the volume fraction and time scale constants of 3 and 1, respectively, and the discrete ordinates radiation model. The simulation results show that application of the magnetic field allows significant reductions in the air preheating temperature often required for moderate or intense low oxygen dilution combustion. Examination of the radial distribution of different chemical spices (CH₂O, OH, and CHO) shows that the imposed magnetic field results in thickening of the reacting flow and intensification of heat release.

数值研究了在氢-甲烷中等或强烈的低氧稀释条件下施加的磁场对反应流行为的影响。这是通过在性能良好的中度或强力低氧稀释燃烧器的入口喷嘴附近增加一系列挡板并在其中施加可变强度的磁场来实现的。使用标准的RANS方案对磁流体动力作用下产生的燃烧流进行建模，其中包括详细的化学原理（GRI。2.1.1），涡旋消散概念模型，其体积分数和时间尺度常数分别为3和1，并且离散纵坐标辐射模型。仿真结果表明，磁场的施加可显着降低中等或强烈的低氧稀释燃烧通常所需的空气预热温度。检查不同化学香料的径向分布（CH_图2 O，OH和CHO）显示，施加的磁场导致反应流变稠和放热增强。