Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform
Dielectric Barrier Discharge Plasma Actuator (DBDPA) is one of active flow control devices, which generates a wall-surface jet utilizing atmospheric discharge. However, the enhancement of the jet is indispensable for application to high Reynolds number flow because the flow speed is typically only u...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2018-10-01
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| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/13/3/13_2018jfst0018/_pdf/-char/en |
| _version_ | 1798021248241893376 |
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| author | Shun NAKAI Hiroyuki NISHIDA Yuya OSHIO |
| author_facet | Shun NAKAI Hiroyuki NISHIDA Yuya OSHIO |
| author_sort | Shun NAKAI |
| collection | DOAJ |
| description | Dielectric Barrier Discharge Plasma Actuator (DBDPA) is one of active flow control devices, which generates a wall-surface jet utilizing atmospheric discharge. However, the enhancement of the jet is indispensable for application to high Reynolds number flow because the flow speed is typically only up to several meters per second. In recently, it was reported that a Pulsed-DC voltage waveform can drastically improve the jet thrust (McGowan et al., 2016). In the Pulsed-DC waveform, the high DC voltage rapidly drops to zero and gradually recover. In the original idea, the DC high voltage is applied to the top electrode and the Pulsed-DC waveform is applied to the bottom electrode. In this study, firstly, we conduct experiments using the same method proposed by the previous study, and next, the DBDPA, in which the top electrode is powered by the Pulsed-DC waveform and the bottom electrode is electrically grounded, is investigated. Finally, we propose a new waveform which is a sinusoidal voltage with periodical pulsed-earthing. As a result, the DBDPA with Pulsed-DC voltage waveform cannot generate strong wall-surface jet, and on the other hand, the proposed waveform generates a significant jet. Even though its strength is the same magnitude as that by the simple sinusoidal waveform, it is confirmed that the jet thrust is enhanced at phases before and after the pulsed-earthing; the tentative thrust increment is up to 32 %. |
| first_indexed | 2024-04-11T17:10:39Z |
| format | Article |
| id | doaj.art-af7f73878233410bb0f4f1da620d6d36 |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-04-11T17:10:39Z |
| publishDate | 2018-10-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-af7f73878233410bb0f4f1da620d6d362022-12-22T04:12:55ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582018-10-01133JFST0018JFST001810.1299/jfst.2018jfst0018jfstInvestigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveformShun NAKAI0Hiroyuki NISHIDA1Yuya OSHIO2Department of Mechanical Systems Engineering, Tokyo University of Agriculture and TechnologyInstitute of Engineering, Tokyo University of Agriculture and TechnologyInstitute of Engineering, Tokyo University of Agriculture and TechnologyDielectric Barrier Discharge Plasma Actuator (DBDPA) is one of active flow control devices, which generates a wall-surface jet utilizing atmospheric discharge. However, the enhancement of the jet is indispensable for application to high Reynolds number flow because the flow speed is typically only up to several meters per second. In recently, it was reported that a Pulsed-DC voltage waveform can drastically improve the jet thrust (McGowan et al., 2016). In the Pulsed-DC waveform, the high DC voltage rapidly drops to zero and gradually recover. In the original idea, the DC high voltage is applied to the top electrode and the Pulsed-DC waveform is applied to the bottom electrode. In this study, firstly, we conduct experiments using the same method proposed by the previous study, and next, the DBDPA, in which the top electrode is powered by the Pulsed-DC waveform and the bottom electrode is electrically grounded, is investigated. Finally, we propose a new waveform which is a sinusoidal voltage with periodical pulsed-earthing. As a result, the DBDPA with Pulsed-DC voltage waveform cannot generate strong wall-surface jet, and on the other hand, the proposed waveform generates a significant jet. Even though its strength is the same magnitude as that by the simple sinusoidal waveform, it is confirmed that the jet thrust is enhanced at phases before and after the pulsed-earthing; the tentative thrust increment is up to 32 %.https://www.jstage.jst.go.jp/article/jfst/13/3/13_2018jfst0018/_pdf/-char/endbd plasma actuatorpulsed-dc waveformpulsed voltage changingpiv measurementthrust |
| spellingShingle | Shun NAKAI Hiroyuki NISHIDA Yuya OSHIO Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform Journal of Fluid Science and Technology dbd plasma actuator pulsed-dc waveform pulsed voltage changing piv measurement thrust |
| title | Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform |
| title_full | Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform |
| title_fullStr | Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform |
| title_full_unstemmed | Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform |
| title_short | Investigation on performance characteristics of dielectric discharge plasma actuator using pulsed-dc waveform |
| title_sort | investigation on performance characteristics of dielectric discharge plasma actuator using pulsed dc waveform |
| topic | dbd plasma actuator pulsed-dc waveform pulsed voltage changing piv measurement thrust |
| url | https://www.jstage.jst.go.jp/article/jfst/13/3/13_2018jfst0018/_pdf/-char/en |
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