Details
| Original language | English |
|---|---|
| Article number | 435 |
| Number of pages | 14 |
| Journal | Journal of Marine Science and Engineering |
| Volume | 7 |
| Issue number | 12 |
| Early online date | 29 Nov 2019 |
| Publication status | Published - Dec 2019 |
Abstract
Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T/D = 1.7 and immersed in sub-critical flow of Reynold number ReD = 10, 000. A three-dimensional Navier-Stokes flow solver in an Arbitrary Lagrangian-Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0.5 < x/D < 1.5 and-0.85 < y/D < 0.85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders.
Keywords
- Energy harvesting, Fluid-structure interaction, Side-by-side cylinders, Vortex shedding, Wake interference
ASJC Scopus subject areas
- Engineering(all)
- Civil and Structural Engineering
- Environmental Science(all)
- Water Science and Technology
- Engineering(all)
- Ocean Engineering
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In: Journal of Marine Science and Engineering, Vol. 7, No. 12, 435, 12.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Vibration Performance of a Flow Energy Converter behind Two Side-By-Side Cylinders
AU - Rasidi Rasani, Mohammad
AU - Moria, Hazim
AU - Beer, Michael
AU - Kamal Ariffin, Ahmad
N1 - Funding information: Acknowledgments: This work was supported by EU H2020 Marie Curie RISE project No. 730888 (ReSET). All types of support from Leibniz University Hannover and Universiti Kebangsaan Malaysia are gratefully acknowledged. Special thanks to Klaus Burwitz (Leibniz University Hannover) for all his assistance. This project received funding from the European Union Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 730888. This work was supported by EU H2020 Marie Curie RISE project No. 730888 (ReSET). All types of support from Leibniz University Hannover and Universiti Kebangsaan Malaysia are gratefully acknowledged. Special thanks to Klaus Burwitz (Leibniz University Hannover) for all his assistance. Funding: This project received funding from the European Union Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 730888.
PY - 2019/12
Y1 - 2019/12
N2 - Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T/D = 1.7 and immersed in sub-critical flow of Reynold number ReD = 10, 000. A three-dimensional Navier-Stokes flow solver in an Arbitrary Lagrangian-Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0.5 < x/D < 1.5 and-0.85 < y/D < 0.85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders.
AB - Flow-induced vibrations of a flexible cantilever plate, placed in various positions behind two side-by-side cylinders, were computationally investigated to determine optimal location for wake-excited energy harvesters. In the present study, the cylinders of equal diameter D were fixed at center-to-center gap ratio of T/D = 1.7 and immersed in sub-critical flow of Reynold number ReD = 10, 000. A three-dimensional Navier-Stokes flow solver in an Arbitrary Lagrangian-Eulerian (ALE) description was closely coupled to a non-linear finite element structural solver that was used to model the dynamics of a composite piezoelectric plate. The cantilever plate was fixed at several positions between 0.5 < x/D < 1.5 and-0.85 < y/D < 0.85 measured from the center gap between cylinders, and their flow-induced oscillations were compiled and analyzed. The results indicate that flexible plates located at the centerline between the cylinder pairs experience the lowest mean amplitude of oscillation. Maximum overall amplitude in oscillation is predicted when flexible plates are located in the intermediate off-center region downstream of both cylinders. Present findings indicate potential to further maximize wake-induced energy harvesting plates by exploiting their favorable positioning in the wake region behind two side-by-side cylinders.
KW - Energy harvesting
KW - Fluid-structure interaction
KW - Side-by-side cylinders
KW - Vortex shedding
KW - Wake interference
UR - http://www.scopus.com/inward/record.url?scp=85079754125&partnerID=8YFLogxK
U2 - 10.3390/JMSE7120435
DO - 10.3390/JMSE7120435
M3 - Article
AN - SCOPUS:85079754125
VL - 7
JO - Journal of Marine Science and Engineering
JF - Journal of Marine Science and Engineering
IS - 12
M1 - 435
ER -