Experimental research on multichannel discharge circuit and multi-electrode plasma synthetic jet actuator

Zhang, Z., Wu, Y., Sun, Z., Song, H., Jia, M., Zong, H. & Li, Y. (2017). Experimental research on multichannel discharge circuit and multi-electrode plasma synthetic jet actuator. Journal of Physics D: Applied Physics, 50(16), 165205.. doi: 10.1088/1361-6463/aa6372

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To solve the low efficiency of plasma synthetic jet actuator (PSJA), a multichannel discharge technique based on the concept of voltage relay is put forward and a new multi-electrode plasma synthetic jet actuator (ME-PSJA) is designed. The experiment shows the multichannel discharge technique can enlarge the discharge channel distance by multiplying the discharge channel number without increasing the input voltage. With a 1 nF discharge capacitor, the discharge efficiency of three channels discharge increases by 135% compared with the standard one channel discharge. When the discharge capacitor increases to 0.3 μF, four discharge channels still improve the discharge efficiency by 119% as well. Schlieren flow visualization confirms that ME-PSJA also outperforms the 2-electrode PSJA in terms of jet velocity and duration time, and both are increased by about 50%.

Item Type: Article
Additional Information: This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Physics D: Applied Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6463/aa6372.
Uncontrolled Keywords: flow control; plasma actuator; plasma synthetic jet; discharge efficiency
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/17281

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