The study of the ionic wind blower with multi-needles/ring type electrodes disposed on inner wall of the cylindrical blower

• Ionic wind is effective method that converts electrical power into mechanical force.
• The multi-needle-type electrode as a wind blower is investigated experimentally.
• Multiple corona electrodes are disposed on the inner wall in ring form.

Corona discharge is one of many methods that convert electrical power into mechanical force. It has been studied for various industrial fields because of its many advantages over conventional motor, such as its no moving parts, simpler structure, minimizing size and so on. In this paper, a discharge system with multiple corona electrodes disposed in a ring format, is studied by focusing on the electrical and mechanical characteristics. Effective ionic wind generation is due to the corona discharge which depends on electric field. Therefore, the electric field is affected by the voltage, discharge spacing, and distance between each corona electrodes.