Towards the noise reduction of piezoelectrical-driven synthetic jet actuators
This work details an experimental investigation aimed at reducing the noise output of piezoelectrical-driven synthetic jet actuators while minimising peak jet velocity reduction. The study considers double-chamber actuator for anti-phase noise suppression and lobed orifice as a method to enhance jet...
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| Format: | Article |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/46743/ |
| _version_ | 1848797390047281152 |
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| author | Jabbal, Mark Jeyalingam, Jonne |
| author_facet | Jabbal, Mark Jeyalingam, Jonne |
| author_sort | Jabbal, Mark |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This work details an experimental investigation aimed at reducing the noise output of piezoelectrical-driven synthetic jet actuators while minimising peak jet velocity reduction. The study considers double-chamber actuator for anti-phase noise suppression and lobed orifice as a method to enhance jet turbulent mixing to suppress jet noise. The study involved the design, manufacture and bench test of interchangeable actuator hardware. Hot-wire anemometry and microphone recordings were employed to acquire velocity and sound pressure level measurements respectively across a range of excitation frequencies for a fixed diaphragm clamping and input voltage. The data analysis indicated a 26% noise reduction (16 dB) from operating a single-chamber, round orifice actuator to a double-chamber, lobed orifice one at the synthetic jet resonant frequency. Results also showed there was a small reduction in peak jet velocity of 7% (∼3 m/s) between these two cases based on orifices of the same discharge area. The electrical-to-fluidic power conversion efficiency of the double-chamber actuator was found to be 15% for both orifice types at the resonant frequency; approximately double the efficiency of a single-chamber actuator. |
| first_indexed | 2025-11-14T20:03:07Z |
| format | Article |
| id | nottingham-46743 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:03:07Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-467432020-05-04T19:12:37Z https://eprints.nottingham.ac.uk/46743/ Towards the noise reduction of piezoelectrical-driven synthetic jet actuators Jabbal, Mark Jeyalingam, Jonne This work details an experimental investigation aimed at reducing the noise output of piezoelectrical-driven synthetic jet actuators while minimising peak jet velocity reduction. The study considers double-chamber actuator for anti-phase noise suppression and lobed orifice as a method to enhance jet turbulent mixing to suppress jet noise. The study involved the design, manufacture and bench test of interchangeable actuator hardware. Hot-wire anemometry and microphone recordings were employed to acquire velocity and sound pressure level measurements respectively across a range of excitation frequencies for a fixed diaphragm clamping and input voltage. The data analysis indicated a 26% noise reduction (16 dB) from operating a single-chamber, round orifice actuator to a double-chamber, lobed orifice one at the synthetic jet resonant frequency. Results also showed there was a small reduction in peak jet velocity of 7% (∼3 m/s) between these two cases based on orifices of the same discharge area. The electrical-to-fluidic power conversion efficiency of the double-chamber actuator was found to be 15% for both orifice types at the resonant frequency; approximately double the efficiency of a single-chamber actuator. Elsevier 2017-10-15 Article PeerReviewed Jabbal, Mark and Jeyalingam, Jonne (2017) Towards the noise reduction of piezoelectrical-driven synthetic jet actuators. Sensors and Actuators A: Physical, 266 . pp. 273-284. ISSN 0924-4247 Synthetic jet actuator; Noise reduction; Dipole; Lobed orifice http://www.sciencedirect.com/science/article/pii/S0924424717301929 doi:10.1016/j.sna.2017.09.036 doi:10.1016/j.sna.2017.09.036 |
| spellingShingle | Synthetic jet actuator; Noise reduction; Dipole; Lobed orifice Jabbal, Mark Jeyalingam, Jonne Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title_full | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title_fullStr | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title_full_unstemmed | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title_short | Towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| title_sort | towards the noise reduction of piezoelectrical-driven synthetic jet actuators |
| topic | Synthetic jet actuator; Noise reduction; Dipole; Lobed orifice |
| url | https://eprints.nottingham.ac.uk/46743/ https://eprints.nottingham.ac.uk/46743/ https://eprints.nottingham.ac.uk/46743/ |