Experimental study on aerodynamic performance of deformable blade for vertical axis wind turbine

Ying Wang, Hui Tong, Hao Sima, Jiayue Wang, Jinjing Sun and Diangui Huang

Energy, 2019, vol. 181, issue C, 187-201

Abstract: In this paper, a new type of blade model driven by single input for vertical axis wind turbine was developed, and it could achieve synchronous active deformation for both of blade leading edge and trailing edge. Firstly, by taking the concept of ribs and by taking NACA0012 airfoil as an example, the mechanical structure and skin with adhesion mechanism of pre-tightening force was adopted based on the continuous deflection and deformation mode of the blade leading and trailing edges with constant thickness. In this way, the adaptive blade could achieve reciprocating smooth deformation with different cambers. Secondly, the experimental platform for measurement of wind tunnel force and flow visualization was built up, where the smoke wire instrument, seven-hole probe, two-component balance were applied for measuring of quasi steady force and flow visualization under different deformation quantities. Finally, the aerodynamic performance of adaptive blade under different deformation factors was revealed. It is found that within an appropriate range of deformation factor, the blade aerodynamic performance can be improved by deforming. When exceeding the critical camber, the friction resistance becomes a dominant factor effecting blade aerodynamic performance. In all, the experimental results in this paper could provide reference for subsequent unsteady experiments.

Keywords: Adaptive blade; Aerodynamic performance; Experiment; Flexible rib (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544219306012
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:181:y:2019:i:c:p:187-201

DOI: 10.1016/j.energy.2019.03.181

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().