AI 中文总结
研究圆柱表面介质阻挡放电流场，采用定量纹影成像与逆阿贝尔变换相结合的方法，记录流场参数，识别出相关温度和密度极值，揭示流场扰动，表明电流体动力学效应主导流场，凸显该定量纹影技术在介质阻挡放电研究中的重要性。
AI 中文摘要
本工作致力于将纹影成像技术与逆阿贝尔变换相结合，以定量记录大气压冷等离子体诱导的流场。详细给出了理论原理、纹影装置设计及校准过程。研究表明忽略阿贝尔变换可能得出错误结论。该方法用于研究圆柱结构表面介质阻挡放电周围的流场参数。识别出驱动电极下游靠近表面处的最大密度、最低温度以及最低密度、最高温度，揭示了流场扰动情况，表明在控制流场中电流体动力学效应占主导。定量纹影技术在介质阻挡放电研究中具有重要性。
英文摘要
The present work is devoted to the proper application of the schlieren imaging technique, combined with inverse Abel transformation, to record the flow field induced by atmospheric pressure cold plasmas, in a quantitative manner. Theoretical principles, along with meaningful diagrams, design of the schlieren setup, and involved calibration process, are given in detail. It is demonstrated that erroneous conclusions may be reached if Abel transformation is omitted. The concept is employed to study flow field parameters around a surface dielectric barrier discharge, operating in ambient air and having a cylindrical configuration, rather than a typical planar design. Maximum density and lowest temperature equal to 1.24 kg m -3 and 285.4 K, respectively, and lowest density and maximum temperature equal to 1.11 kg m -3 and 318.8 K, respectively, downstream of the driven electrode and close to the surface are identified with respect to the unperturbed air where density equals 1.21 kg m -3 and temperature equals 291.5 $K$. The temperature and density patterns unveil intense perturbations at shorter distances from the surface and lower amplitudes of the sinusoidal (10 kHz) voltage that sustains the discharge. Electrohydrodynamic effects seem to dominate over thermal mechanisms in governing the flow field. The importance of the quantitative schlieren technique, as a non-invasive one, in the study of dielectric barrier discharges is justified by the interest that they attract in numerous demanding cases of plasma-assisted flow field control (propulsion, actuators, etc.).
