Chan, Min Xhao (2018) Aerodynamic Characteristics Of Membrane Airfoil Compared To Rigid Naca 4412 Airfoil. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Aeroangkasa.
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Abstract
Membrane airfoil is said to have the flexibility to change its surface geometry to adapt to the airflow. This means that it has the potential to balance the pressure gradient, resulting with a delayed stall and also the capability to expand its camber to increase the overall lift. The paper aims to study the aerodynamic performance of a ribbed-structure airfoil (NACA 4412) wrapped in a thin sheet of latex rubber membrane and compare it with the original rigid airfoil. The results from this experiment showed that the lift-to-drag ratio of the membrane airfoil improved when compared to its rigid counterpart with investigations carried out at low Reynolds number from around Re = 30,000 ∼100,000. Due to the characteristics of the membrane being frail, high flow velocity will not be suitable. Aerodynamic forces are measured using external force balance at subsonic wind tunnel. Also, this study will attempt to measure the membrane deflections of the airfoil using the concept of elastic modulus.
| Item Type: | Monograph (Project Report) |
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| Subjects: | T Technology T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1-4050 Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraan Aeroangkasa (School of Aerospace Engineering) > Monograph |
| Depositing User: | Mr Engku Shahidil Engku Ab Rahman |
| Date Deposited: | 09 Jun 2022 05:45 |
| Last Modified: | 09 Jun 2022 05:45 |
| URI: | http://eprints.usm.my/id/eprint/52514 |
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