Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/61542
Title: | Active control of vortex-induced vibrations of a circular cylinder using windward-suction- leeward-blowing actuation | Authors: | Wang, C Tang, H Yu, SCM Duan, F |
Issue Date: | 2016 | Source: | Physics of fluids, 2016, v. 28, no. 5, 53601, p. 053601-1-053601-14 | Abstract: | This paper studies the control of two-dimensional vortex-induced vibrations (VIVs) of a single circular cylinder at a Reynolds number of 100 using a novel windwardsuction-leeward-blowing (WSLB) concept. A lattice Boltzmann method based numerical framework is adopted for this study. Both open-loop and closed-loop controls are implemented. In the open-loop control, three types of actuation arrangements, including the pure suction on the windward side of the cylinder, the pure blowing on the leeward side, and the general WSLB on both sides, are implemented and compared. It is found that the general WSLB is the most effective, whereas the pure suction is the least effective. In the closed-loop control, the proportional (P), integral (I), and proportional-integral (PI) control schemes are applied to adjust the WSLB velocities according to the flow information obtained from a sensor. The effects of four key control parameters including the proportional gain constant, the integral gain constant, the length of data history used for the feedback, and the location of the sensor are investigated. It is found that the use of only P control fails to completely suppress the VIV, the use of only I control can achieve the complete suppression, and the PI control performs the best in terms of both the control effectiveness and efficiency. In the PI control, there exists an optimal length of data history for the feedback, at which the VIV control is the most efficient. There also exist the minimum required WSLB velocities for the VIV suppression, independent of the control schemes. Moreover, it is found that the VIV control is independent of the sensor location. Published by AIP Publishing. | Publisher: | American Institute of Physics | Journal: | Physics of fluids | ISSN: | 1070-6631 (print) 1089-7666 (online) |
DOI: | 10.1063/1.4947246 | Rights: | © 2016 Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in C. Wang et al., Phys. Fluids 28, 053601 (2016) and may be found at https://dx.doi.org/10.1063/1.4947246 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Wang_Control_Vortex-induced_Vibrations.pdf | 4.51 MB | Adobe PDF | View/Open |
Page views
160
Last Week
1
1
Last month
Citations as of Sep 22, 2024
Downloads
176
Citations as of Sep 22, 2024
SCOPUSTM
Citations
70
Last Week
0
0
Last month
Citations as of Sep 26, 2024
WEB OF SCIENCETM
Citations
61
Last Week
0
0
Last month
Citations as of Sep 26, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.