Abstract—

The results from studying electrohydrodynamic (EHD) vortex flows in a 1-mm gap with different geometry of electrodes and under constant external electric fields are presented. The solution of a transformer oil with iodine was used as a working fluid in which the unipolar conductivity was formed owing to the electro-chemical injection of negative ions from the cathode. The EHD microvortex flow was observed using an optical microscope and snapshot with a digital video camera. The flow lines were fixed with the tracks of light-scattering microparticles 1 micron in size. The rates of flows were up to 10 cm/s at a voltage of 3 kV across the electrodes.

中文翻译：

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恒定电场下的MicroEHD流动结构

摘要-

给出了研究电流体动力学（EHD）涡流在1mm间隙中，电极几何形状不同且在恒定外部电场下的结果。将变压器油与碘的溶液用作工作流体，其中由于从阴极电化学注入负离子而形成了单极导电性。使用光学显微镜观察EHD微涡流，并使用数字摄像机拍摄快照。流水线用尺寸为1微米的光散射微粒的轨迹固定。电极两端的电压为3 kV时，流速高达10 cm / s。