叶片电极诱导电流体力学羽流的数值模拟和PIV实验研究

In this paper, a comparative study between numerical and experimental results from
PIV measurements is presented in the case of two-dimensional electrohydrodynamic plumes that
arise when a sharp metallic blade, submerged in non conducting liquids, supports high electric
potential. Experiments and numerical simulations have been conducted in order to confront the
both approaches. A very good agreement has been found through velocity profiles and velocity
fields which testifies the relevance of our numerical model. For high potentials the jet flow issued
forth from the blade becomes unsteady and starts to flap on the vertical wall. Some captions of the
temporal evolution of the isocontours of charge density which is not accessible from experiment are
presented thanks to the numerical simulation. 德国LaVision PIV/PLIF粒子成像测速场仪