A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer
Piezoelectric transducers are used as a sensing device to study the fluids’ motion. Moreover, they are used as a harvester of energy of Flow-Induced Vibration (FIV). The current FIV harvesters in the literature rely on piezoelectric cantilevers coupled with a bluff body that creates flow instabiliti...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/9/3463 |
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| author | Shehab Salem Karel Fraňa |
| author_facet | Shehab Salem Karel Fraňa |
| author_sort | Shehab Salem |
| collection | DOAJ |
| description | Piezoelectric transducers are used as a sensing device to study the fluids’ motion. Moreover, they are used as a harvester of energy of Flow-Induced Vibration (FIV). The current FIV harvesters in the literature rely on piezoelectric cantilevers coupled with a bluff body that creates flow instabilities. This paper studies the use of piezoelectric cylinders as a novel transducer in the field of fluid mechanics, where the transducer makes use of its bluff geometry to create instability. The study was based on wind tunnel measurements performed on four piezoelectric cylinders of different sizes over a speed range of 1–7 m/s. The paper looks at the variation of the generated voltage across the Reynolds number. It also compares the spectra of the generated open-circuit voltage to the turbulence spectra features known from the literature. |
| first_indexed | 2024-03-10T03:41:24Z |
| format | Article |
| id | doaj.art-c9d7f5e8ad14411190ab34a703708ead |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T03:41:24Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c9d7f5e8ad14411190ab34a703708ead2023-11-23T09:18:53ZengMDPI AGSensors1424-82202022-05-01229346310.3390/s22093463A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric TransducerShehab Salem0Karel Fraňa1Department of Energy Equipment, Faculty of Mechanical Engineering, Technical University of Liberec, 461 17 Liberec, Czech RepublicDepartment of Energy Equipment, Faculty of Mechanical Engineering, Technical University of Liberec, 461 17 Liberec, Czech RepublicPiezoelectric transducers are used as a sensing device to study the fluids’ motion. Moreover, they are used as a harvester of energy of Flow-Induced Vibration (FIV). The current FIV harvesters in the literature rely on piezoelectric cantilevers coupled with a bluff body that creates flow instabilities. This paper studies the use of piezoelectric cylinders as a novel transducer in the field of fluid mechanics, where the transducer makes use of its bluff geometry to create instability. The study was based on wind tunnel measurements performed on four piezoelectric cylinders of different sizes over a speed range of 1–7 m/s. The paper looks at the variation of the generated voltage across the Reynolds number. It also compares the spectra of the generated open-circuit voltage to the turbulence spectra features known from the literature.https://www.mdpi.com/1424-8220/22/9/3463piezoelectric sensorsflow-induced vibrationenergy harvestingvortex sheddingcylinder wake |
| spellingShingle | Shehab Salem Karel Fraňa A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer Sensors piezoelectric sensors flow-induced vibration energy harvesting vortex shedding cylinder wake |
| title | A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer |
| title_full | A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer |
| title_fullStr | A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer |
| title_full_unstemmed | A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer |
| title_short | A Wind Tunnel Study of the Flow-Induced Vibrations of a Cylindrical Piezoelectric Transducer |
| title_sort | wind tunnel study of the flow induced vibrations of a cylindrical piezoelectric transducer |
| topic | piezoelectric sensors flow-induced vibration energy harvesting vortex shedding cylinder wake |
| url | https://www.mdpi.com/1424-8220/22/9/3463 |
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