Koçyiğit, Saltuk (2015) INVESTIGATING THE RELATION BETWEEN SYMMETRIC PROPERTIES AND LIFT/DRAG COEFFICIENTS FOR AIRFOILS. Other thesis, TED Ankara Koleji.
|
Text (pdf)
Saltuk_Kocyigit.pdf - Other Available under License Creative Commons Attribution Non-commercial. Download (8MB) | Preview |
Abstract
The main purpose of this project is to find the relation between symmetric property of an airfoil and lift/drag coefficients. In this essay two airfoils, NACA 0015 and NACA 4412 will be used for comparison and finding the relation. NACA 0015 falls under symmetric airfoil category whereas NACA 4412 is common asymmetric airfoil. To find the relation NACA 0015 and NACA 4412 airfoils are handcrafted with balsa wood and thin films. Balsa wood is cutted using a laser cutter. With obtained ribs and balsa sheets the model is crafted. In addition to this a thin film is used to cover the crafted airfoils. The crafted airfoils are put into test in AF100 Subsonic Wind Tunnel and datas were taken with AFA3 Three Component Balance System. From obtained datas, mean values are found for each angle of attack and put into coefficient formulas. With calculated coefficient values graphs are plotted to compare two airfoils. At the end of all calculations and plotting it is found that asymmetric airfoil produces much more lift than symmetric one. However, while its asymmetric property helped the airfoil to produce more lift, it also produced more drag than symmetric one. It is understood that while both airfoils show similar drag patterns under same air streams, asymmetric airfoils face lift-induced drag because of their structure. Even though it wasn’t the aim of this experiment it was also seen that asymmetric airfoil had a higher critical angle of attack.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | Name of supervisor: Enis CİHANOĞLU, IB Notu: B |
| Uncontrolled Keywords: | symmetric property, lift/drag coefficients, airfoil |
| Subjects: | Q Science > QC Physics |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 27 Aug 2015 07:02 |
| Last Modified: | 27 Aug 2015 07:02 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/677 |
Actions (login required)
 |
View Item |
