Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-12-15
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
In order to investigate the impact of airfoil thickness on flapping performance, the unsteady flow fields of a family of airfoils from an NACA0002 airfoil to an NACA0020 airfoil in a pure plunging motion and a series of altered NACA0012 airfoils in a pure plunging motion were simulated using computational fluid dynamics techniques.
The “class function/shape function transformation“ parametric method was employed to decide the coordinates of these altered NACA0012 airfoils.
Under specified plunging kinematics, it is observed that the increase of an airfoil thickness can reduce the leading edge vortex (LEV) in strength and delay the LEV shedding.
The increase of the maximum thickness can enhance the time-averaged thrust coefficient and the propulsive efficiency without lift reduction.
As the maximum thickness location moves towards the leading edge, the airfoil obtains a larger time-averaged thrust coefficient and a higher propulsive efficiency without changing the lift coefficient.
American Psychological Association (APA)
Zhao, Liangyu& Yang, Shuxing. 2010. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering،Vol. 2010, no. 2010, pp.1-19.
https://search.emarefa.net/detail/BIM-489600
Modern Language Association (MLA)
Zhao, Liangyu& Yang, Shuxing. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering No. 2010 (2010), pp.1-19.
https://search.emarefa.net/detail/BIM-489600
American Medical Association (AMA)
Zhao, Liangyu& Yang, Shuxing. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering. 2010. Vol. 2010, no. 2010, pp.1-19.
https://search.emarefa.net/detail/BIM-489600
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489600