This work investigates the effect and mechanisms of gas heating in atmospheric pressure air dielectric barrier discharges with experimental measurements and numerical models developed. The heating sources of a single microdischarge (MD) are evaluated by the 1.5D plasma fluid model (PFM) with heating mechanisms including elastic collisions, the ionic Joule heating, and kinetics considered. A 3D gas flow model (GFM) simulating the temperature distribution of the reactor with the convective effect of airflow considered is developed to verify heating sources calculated by comparing the simulated gas temperature with the rotational temperature determined from N 2 emission spectra measured. The source term of the energy equation in the 3D GFM is evaluated from the overall heating source calculated by the 1.5D PFM. The experimental average power consumption of the reactor is obtained and compiled statistically as 3.4 W. The average number of MDs in one cycle is compiled stati...

中文翻译：

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大气压空气介质阻挡放电中单个微放电的热特性

这项工作通过实验测量和数值模型研究了大气压空气介质阻挡放电中气体加热的影响和机理。通过1.5D等离子流体模型（PFM）对单个微放电（MD）的加热源进行了评估，并采用了包括弹性碰撞，离子焦耳加热和动力学在内的加热机制。开发了一种3D气流模型（GFM），该模型通过考虑气流的对流效应来模拟反应堆的温度分布，以验证通过比较模拟的气体温度和从测量的N 2发射光谱确定的旋转温度而计算出的热源。3D GFM中的能量方程式的源项是根据1.5D PFM计算出的整体热源来估算的。