Electrostatic control of air flow to the inlet opening of an axial fan

摘要

A method of modifying the airflow to the inlet of an axial fan. The method includes operating an axial fan to move air longitudinally through an air inlet opening of the axial fan, and, during operation of the axial fan, applying an electrical potential between an emitter and a collector to cause ionic air movement radially outwardly away from a central axis of the axial fan, wherein the radially outward air movement is caused upstream of the axial fan before the air reaches the air inlet opening.