Synthetic jet actuator using bubbles produced by electric discharge
-
- NISHIBE Koichi
- Department of Mechanical Engineering, Tokyo City University
-
- FUJIWARA Tamio
- Department of Mechanical Engineering, Tokyo City University
-
- OHUE Hiroshi
- Department of Mechanical Engineering, Tokyo City University
-
- TAKEZAWA Hideki
- Innovative Mechanical Engineering, Kogakuin University
-
- SATO Kotaro
- Innovative Mechanical Engineering, Kogakuin University
-
- YOKOTA Kazuhiko
- Department of Mechanical Engineering, Aoyamagakuin University
Bibliographic Information
- Other Title
-
- Synthetic Jet Using Bubbles Produced by Electric Discharge
Abstract
Over the last decade, synthetic jets suitable for micro-machinery have received attention for their potential to replace continuous jets. The development of synthetic jet actuators with, for example, a diaphragm, a piston, a piezoelectric element, or a speaker cone instead of mechanical drivers, is required for the downsizing and weight reduction of flow control systems in fluid machines. In this study, an experimental prototype for a synthetic jet actuator that uses the nonlinear oscillation of bubbles produced by repetitive electric discharge is proposed. Numerical simulations are performed to clarify the fundamental flow behavior of the synthetic jets produced by bubble motion. The behavior of a bubble induced by a single discharge and the estimated change in nozzle exit velocity with time are shown, and typical flow patterns for synthetic jets produced by periodic electric discharge are discussed. The influence of the ratio of the bubble driving cycle period to the electric discharge cycle period (T*) on the unsteady flow pattern and the time-averaged jet structure is investigated in detail. In addition, the flow characteristics of a synthetic jet with downtime are compared with those of a normal synthetic jet produced by linear oscillation under the condition that the strokes of both jets are equivalent.
Journal
-
- Journal of Fluid Science and Technology
-
Journal of Fluid Science and Technology 9 (3), JFST0033-JFST0033, 2014
The Japan Society of Mechanical Engineers
- Tweet
Details
-
- CRID
- 1390001205247190528
-
- NII Article ID
- 130004695302
-
- ISSN
- 18805558
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
- KAKEN
-
- Abstract License Flag
- Disallowed