Abstract

This research computes the viscous flow field and aerodynamics around the model of a commercial passenger airplane, Boeing 747-400, which cruises in transonic speed. The configuration was realized through the reverse engineering based on the photo scanning measurement. In results, the pressure coefficients at the several wing section on the wing surface of the airplane was described and discussed to obtain the physical meaning. The lift coefficient increased almost linearly up to $17^{\circ}$. Here the maximum lift occurred at $18^{\circ}$ according to the angle of attack. And the minimum drag is expected at $-2^{\circ}$. The maximum lift coefficient occurred at the Mach number 0.89, and the drag coefficient rapidly increased after the Mach number of 0.92. Also shear-stress transport model predicts slightly lower aerodynamic coefficients than other models and Chen's model shows the highest aerodynamic values. The aerodynamic performance of the airplane elements was presented.

주제어

#공력   #천음속   #받음각   #압력 계수  

저자의 다른 논문

참고문헌 (15)

1. 1976, McCroskey, W.L., Carr, L.M. and Alister, K.W., "Dynamic stall experiments on oscillating airfoils," AIAA J., Vol.14, pp.57-63 
2. 1981, McCroskey, W.L., "The Phenomenon of dynamic stall," NASA-TM-81264 
3. 1972, Johnson, W. and Ham, H.D., "On the mechanism of dynamic stall," J. of American Helicopter Society, Vol.17, pp.36-45 
4. 1974, Marvin, P.F. and James, P.S., "Wind-tunnel tests of a full-scale model of a light twin-engine airplane with fixed auxiliary airfoil or leading-edge slot," NASA-TN-D7474 
5. 1997, Bardina, J.E., Huang, P.G. and Coakley, T.J., "Turbulence modeling validation," AIAA-97-2121 
6. 1978, Alister, K.W., Carr, L.M. and McCroskey, W.L., "Dynamic stall experiments on the NACA0012 airfoils," NASA-TP-1100 
7. 2004, Lee-Rausch, E.M. and Frink, N.T., "Transonic drag prediction on a DLR-F6 transport configuration using unstructured grid solvers," AIAA-2004-0554 
8. 2002, Vos, J.B., Rizzi, A., Darrcq, D. and Hirschel, E.H., "Navier-Stokes solvers in European aircraft design," Progress in Aerospace Sciences, Vol.38, pp.601-697 
9. 2004, Rumsey, C.L., Rivers, S.M. and Morrison, J.H., "Study of CFD Variation on transport configurations from the second drag-prediction workshop," AIAA-2004-0394 
10. 2002, David, W.L. et al., "Summary of data from the firs AIAA CFD drag prediction workshop," AIAA-2002-0841 
11. 1965, Asley, H., Aerodynamics of wings and bodies, Reading, Massachusetts, Addison-Wesley Publishing Co. 
12. 1995, Jou, W.H., Huffman, W.P., Young, D.P., Melvin R.G., Bieterman, M.B., Hilems, C.L. and Johnson, F.T., "Practical considerations in aerodynamic design optimization," AIAA-95-1730 
13. 1980, Boppe, C.W., "Transonic flow field analysis for wing-fuselage configurations," NASA-CR-3243 
14. 1975, George, S.D., "Dynamic stall experiments on oscillating airfoils," AIAA J., Vol.13, pp.1354-1359 
15. 2006, Martin, G., "Comparison of aerodynamic performance of raked wing tips and large winglets," Master thesis, Cranfield university 

이 논문을 인용한 문헌 (0)

1. 이 논문을 인용한 문헌 없음