Mohd Nor Fakhzan Mohd Kazim
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Preferred name
Mohd Nor Fakhzan Mohd Kazim
Official Name
Mohd Nor Fakhzan , Mohd Kazim
Alternative Name
Mohd Kazim, M. N. F.
Mohd Kaz, Mohd Nor Fakhzan
Main Affiliation
Scopus Author ID
55891362300
Researcher ID
FDP-7092-2022

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Investigation of vortex-induced vibration with different width of two bluff bodies in tandem arrangement for energy harvesting system

2021-05-24 , Aziz N.A. , Mohd Nor Fakhzan Mohd Kazim , Nasrul Amri Mohd Amin , Mohd Shukry Abdul Majid , Mohd Afendi Rojan , Nasir N.F.M.

Due to imperative of enhancement on Vortex-induced vibration (VIV) energy harvesting as renewable energy sources, dual bluff bodies which are triangle and cylinder in tandem arrangement with different width from each other are studied in terms of total deformation, directional deformation and voltage generated in order to determine the better bluff bodies for the piezoelectric film. This is due to the unsymmetrical wakes pattern, low frequency vortices, and low energy output produced by the system. The length and height of the bluff bodies were fixed to 0.1m and airflow used for simulations was 1.46m/s. The spacing ratio was calculated from 1 to 6 to examine various width between two bluff bodies that will affect the formation of the vortex at the downstream area. From the results, it can be concluded that triangle bluff bodies in tandem arrangement 0.6m from each other have resulted in the highest total deformation and effective voltage generated of 0.47mm, and 3.05mV, respectively. These data indicated the highest ability of energy harnessing. Furthermore, this model results in a consistent flagging direction of the piezoelectric that implying a good energy harvesting system.

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