Numerical analysis of a nanosecond repetitively pulsed plasma-assisted counterflow diffusion flame

被引：0
|
作者：
Chen, Bang-Shiuh [1 ,3 ]
Garner, Allen L. [2 ]
Bane, Sally P. M. [1 ]
机构：
[1] Purdue Univ, Sch Aeronaut & Astronaut, W Lafayette, IN 47907 USA
[2] Purdue Univ, Sch Nucl Engn, W Lafayette, IN 47907 USA
[3] MIT, Dept Aeronaut & Astronaut, Cambridge, MA 02139 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2023年 / 133卷 / 20期
关键词：
NONEQUILIBRIUM PLASMA; DISCHARGE; IGNITION;
D O I：
10.1063/5.0147305
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A computationally efficient model is proposed to analyze plasma-assisted combustion using nanosecond repetitive pulsed (NRP) plasmas. The NRP plasma discharge is placed in the oxidizer stream of a counter-flow diffusion flame. The effect of changing the flow rate and the pulse repetition frequency (PRF) of a continuous NRP plasma discharge on the temperature and species profiles of a counter-flow diffusion flame is investigated numerically. The results confirm that oxygen atom and nitrogen vibrational states are the most important species to enhance combustion. The results also show that kinetic effects are much more significant for higher PRF and lower pulse voltage. In addition, when steady plasma profiles are used instead of unsteady plasma profiles, the extinction strain rates increase by 25.8%, 21.1%, and 10.8% for PRF equal to 1, 2, and 4 kHz, respectively.
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页数：16
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