Abstract
ABSTRACT The idea of applying ionic wind cooling technology without moving parts to portable electronic devices is becoming a reality. In this study, the wire-wire type and wire-mesh type ionic wind generators reported in a few references are investigated while copper wire is used as the emitter electrode. The flow characteristics of ionic wind are qualitatively described under a variety of structural parameters, and quantitatively analyzed by calculating the correlations defining relationships between flow field and electric field. The results of u-V relation indicate that the square of the ionic wind velocity is proportional to the voltage. Moreover, the optimal parameters of single-stage generators are presented, such as electrode gap, electrode angle, electrode polarity, wind velocity and efficiency. Finally, the results of multi-stage structures with wire-mesh electrode show that superimposing multi-stage electrode pairs can enhance the wind velocity and the three-stage structure is optimal with a velocity increase of 26.8% over the single-stage structure, but the practicality will be limited due to low efficiency.
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