Electrostatic actuation is used for real-time multiphysics feedback control of two-fluid coaxial atomization. This actuation is added to the modulation of the axial and angular momentum of the turbulent coaxial gas stream, for a total of three actuators to control atomization. We characterize the spray real-time response through optical scattering measurements of radial liquid distribution. We apply principal component analysis on the scattering radial profiles and correlate the first three principal components to the three control inputs. The control algorithm continuously adjusts the three inputs to minimize the difference between a goal radial profile representing the desired spray state and the profile observed in real-time. This real-time multiphysics (gas momentum plus electrostatic repulsion) control on the liquid distribution in a two-fluid coaxial spray is a novel contribution to the archival literature on this technology.

中文翻译：

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静电辅助同轴雾化喷涂液体分布的反馈控制

静电致动用于双流体同轴雾化的实时多物理场反馈控制。该致动被添加到湍流同轴气流的轴向和角动量的调制中，总共需要三个致动器来控制雾化。我们通过对径向液体分布的光学散射测量来表征喷雾实时响应。我们在散射径向轮廓上应用主成分分析，并将前三个主成分与三个控制输入相关联。控制算法连续调整三个输入，以最大程度地减少代表所需喷雾状态的目标径向轮廓和实时观察到的轮廓之间的差异。