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Power output comparison of side-by-side fluidic harvesters in different types of fractal grid-generated turbulence
Author(s): Kevin Ferko; Nicholas Chiappazzi; Jiawei Gong; Amir H. Danesh-Yazdi
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Paper Abstract

Turbulence-induced vibration, particularly one generated by a fractal grid, has not been studied in much detail in the literature. This study focuses on the interaction of two side-by-side piezoelectric energy harvesters in fractal grid-generated turbulence. Three fractal grid patterns have been considered: “I”, square and cross. For each grid pattern, a full-factorial study of four important parameters has been considered: (i) Beam lengths and configurations, (ii) Mean flow velocity, (iii) Distance of the beams from the grids and (iv) the separation between the two beams. Experimental results show that all three fractal grids allowed for a significantly larger power output from the piezoelectric beams compared to a passive rectangular grid with a similar blockage ratio that was previously studied.

Paper Details

Date Published: 21 March 2019
PDF: 11 pages
Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XII, 109670P (21 March 2019); doi: 10.1117/12.2511889
Show Author Affiliations
Kevin Ferko, Penn State Behrend (United States)
Nicholas Chiappazzi, Penn State Behrend (United States)
Jiawei Gong, Penn State Behrend (United States)
Amir H. Danesh-Yazdi, Rose-Hulman Institute of Technology (United States)

Published in SPIE Proceedings Vol. 10967:
Active and Passive Smart Structures and Integrated Systems XII
Alper Erturk, Editor(s)

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