Studi Eksperimen Dan Numerik Pengaruh Slat Clearance Serta Slat Angle Untuk Mengeliminasi Stall Pada Airfoil “ Studi kasus airfoil NACA 2412”

Arwanda Wahyu Eko Sadewo, Herman Sasongko
Submission Date: 2017-01-23 10:52:30
Accepted Date: 2017-03-17 10:12:42


Fase take off dan landing merupakan fase yang paling kritis diantara fase – fase dalam operasi penerbangan. Pada saat take off sayap pesawat diposisikan pada angle of attack yang cukup besar, sehingga aliran udara akan melawan adverse pressure yang lebih besar sampai saat dimana aliran tidak mampu melawan adverse pressure aliran akan terseparasi. Jika terjadi separasi permanen sesaat setelah aliran melintasi leading edge di sektor upper side maka bisa mengakibatkan terjadinya stall pada pesawat. Untuk mencegah hal tersebut terjadi, dibutuhkan slat pada bagian depan sayap sebagai penuntun aliran pada leading edge untuk memasuki daerah upper side secara halus dengan akselerasi yang kuat. Penelitian ini dilakukan dengan eksperimen dan numerik. Benda uji yang digunakan adalah airfoil NACA 2412 dengan slat dan tanpa slat. Variasi slat clearance dan slat angle yaitu S/c : 0,05; 0,07; 0,09; (β): 0°, 3°, 5°. Hasil penelitian ini adalah konfigurasi B merupakan konfigurasi optimum dalam mengeliminasi stall pada angle of attack (α) 8°, sedangkan konfigurasi H merupakan konfigurasi optimum dalam mengeliminasi stall pada angle of attack (α) 16°.


airfoil NACA 2412; slat; slat clearance; slat angle


Souza, D.S., Rodriguez, D., Simoes, L.G.C., Medeiros, M.A.F, 2014. Effect of an excrescene in the slat cove : Flow-field, acoustic radiation and coherent structures. Aerospace Science and Technology. 2015, vol 44. Pp.108-115.

Ge, C., Ren, L., Liang, P., Zhang, C., Zhang, Z. 2013. High-Lift Effect of Bionic Slat Based on Owl Wing. Journal of Bionic Engineering 2013, vol 10, Pp. 456-463.

Tung, C., McAlister, K.W., Wang, C.M. 1993. Unsteady Aerodynamic Behavior of An Airfoil With and Without a Slat. Computers Fluids Vol. 22, No. 4/5, Pp. 529-547.

Savory, E., Toy, N., Tahouri, B., Dalley, S. 1992. Flow Regimes in the Cove Region Between a Slat and Wing and Between a Wing and Flap of a Multielement Airfoil. Experimental Thermal and Fluid Science 1992 Vol. 5, Pp. 307-316.

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