Malik, Khurshid and Aldheeb, Mohammad and Asrar, Waqar and Sulaeman, Erwin (2019) Effects of bio-inspired surface roughness on a swept back tapered NACA 4412 wing. Journal of Aerospace Technology and Management, 11. e1719. ISSN 1984-9648 E-ISSN 2175-9146
|
PDF
- Published Version
Download (7MB) | Preview |
|
|
PDF (SCOPUS)
- Supplemental Material
Download (232kB) | Preview |
|
|
PDF (WOS)
- Supplemental Material
Download (312kB) | Preview |
Abstract
This paper presents the overall pros and cons of the effect of surface roughness elements over a NACA 4412 tapered, swept back half wing with a sweep angle of 30º and a dihedral angle of 5º. The tests were conducted at a Reynolds number of 4 × 105 in the IIUM Low Speed wind tunnel. Different roughness sizes and roughness locations were tested for a range of angle of attack. Lift, drag and pitching moment coefficients were measured for the smooth wing and with roughness elements. Surface roughness delays the stall angle and decreases the lift. The wing with the roughness elements located at 75% to 95% of mean chord from leading edge shows minimum drag and maximum lift compared to other locations. Significant increase in the pitching moment coefficient was found for flexible roughness elements. In case of rigid surface roughness, the effect on pitching moment is small.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 4277/79400 |
| Uncontrolled Keywords: | 3D wing aerodynamic coefficients; Bio-inspired roughness elements; NACA 4412 |
| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering |
| Depositing User: | Prof. Waqar Asrar |
| Date Deposited: | 18 Mar 2020 15:50 |
| Last Modified: | 18 Mar 2020 15:50 |
| URI: | http://irep.iium.edu.my/id/eprint/79400 |
Actions (login required)
 |
View Item |
Download Statistics
Download Statistics