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中文摘要：
本文对氢气-空气反向流动扩散火焰的燃烧与流动过程进行了二维数值模拟，研究了空气侧通过纳秒脉冲放电方式产生的活性组分氧原子对贫燃极限和火焰结构造成的影响。结果表明：在空气侧氧原子浓度的增加可以使火焰面向燃料入口侧方向移动；氧原子浓度的提高可以扩展燃料稀释的熄灭极限。研究还发现，虽然空气侧入口温度的提高也可以扩展贫燃极限，但其作用的机理与氧原子有所不同。
英文摘要：
Numerical studies were conducted to investigate the effects of atomic oxygen, which was produced by nano-second pulsed discharge, on the extinction limit and flame structure of the counterflow diffusion flames. It was shown that with the increase of atomic oxygen mole fraction in the oxidizer stream, the axial position of the flame is shifted towards to the fuel inlet, and the fuel flammability limit is expanded. Further study showed that the increase of inlet oxidizer temperature also expands the fuel flammability limit, but its kinetics mechanism is different from that of atomic oxygen.
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Two-temperature chemical-nonequilibrium modelling of a high-velocity argon plasma flow in a low-powe
Modeling study to compare the flow and heat transfer characteristics of low-power hydrogen, nitrogen
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