Numerical analyses of wire-plate electrohydrodynamic flows

We present numerical analyses of two-dimensional electrohydrodynamic (EHD) flows a dielectric liquid between wire electrode and two plate electrodes with Poiseuille flow, using direct simulation global stability analysis. Both conduction injection mechanisms for charge generation are considered. In this work we focused on the intensity cross-flow studied EHD without cross-flow, weak strong cross-flow. (1) case investigated its nonlinear flow structures linear dynamics. found that in regime is steady, whereas oscillatory, which can be explained by (2) The closely related to phenomena an electrostatic precipitator (ESP). Our indicate increasing or electric Reynolds number leads less stable flow. Based these results, infer one should adopt relatively low voltage wire-plate avoid instability, may hold practical implications ESP. (3) examined study effect wake By comparing conventional cylindrical regimes, brings forward vortex shedding flows. Besides, reduces drag coefficient when weak, but increases it strong.