Aerodynamic Characteristics of NACA 23015 Landing Configuration with 20o Flap in Simulated Rain

Article Preview

Abstract:

In our numerical simulation the heavy rain effects have been studied on the aerodynamic performance of 2D cambered NACA 23015 airfoil landing configuration with 20o. We have used preprocessing software gridgen for creation of the landing configuration of the airfoil and then creating mesh around it. Fluent is used to solve the conservation equations. We have used discrete phase modeling (DPM) in Fluent to simulate the rain phenomenon in continuous phase flow by using two phase flow approach. In our study the coupling between the discrete and the continuous phase has been activated. In discrete phase model (DPM), we used the wall film model for the interaction of the continuous and discrete phase. The airfoil landing configuration exhibited significant decrease in lift and increase in drag for a given lift conditions in simulated rain. Post processing software like MATLAB, Tec plot and Origin are used to see the effects of the heavy rain and then results obtained are compared with the experimental results. Our numerical results in most of cases show similar trends with the experiments.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

108-112

Citation:

Online since:

June 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] B. Landsberg, Accident Trends and Factors, Joseph T, " Nail General Aviation Safety Report, AOPA Air Safety Foundation, Frederick, MD, pp.3-6, (1993).

Google Scholar

[2] P. Riordan, Weather extremes around the world, DTIC Document1974.

Google Scholar

[3] R. V. Rhode, Some Effects of Rainfall on Flight of Airplanes and on Instrument Indication, DTIC Document1941.

Google Scholar

[4] P. Haines and J. Luers, Aerodynamic penalties of heavy rain on landing airplanes, Journal of Aircraft, vol. 20, pp.111-119, (1983).

DOI: 10.2514/3.44839

Google Scholar

[5] J. K. Luers and P. A. Haines, Experimental measurements of rain effects on aircraft aerodynamics, in AIAA 21 st Aerospace Sciences Meeting, (1983).

Google Scholar

[6] J. K. Luers, Heavy Rain Effects on Aircraft, AIAA Pap, pp.83-0206, (1983).

Google Scholar

[7] R. Hansman and M. Barsotti, The aerodynamic effect of surface wetting characteristics on a laminar flow airfoil in simulated heavy rain, in American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting, 23 rd, Reno, NV, (1985).

DOI: 10.2514/6.1985-260

Google Scholar

[8] A. P. Craig and R. J. Hansman, AN EXPERIMENTAL LOW REYNOLDS NUMBER COMPARISON OF A WORTMANN FX67-Kl70 AIRFOIL, A NACA 0012 AIRFOIL, AND A, (1987).

DOI: 10.2514/3.45476

Google Scholar

[9] J. Valentine, Airfoil performance in heavy rain, Transportation research record, (1994).

Google Scholar

[10] J. Valentine and R. Decker, A Lagrangian-Eulerian scheme for flow around an airfoil in rain, International journal of multiphase flow, vol. 21, pp.639-648, (1995).

DOI: 10.1016/0301-9322(95)00007-k

Google Scholar

[11] J. R. Valentine and R. A. Decker, Tracking of Raindrops in Flow over an Airfoil, Journal of Aircraft, vol. 32, pp.100-105, (1995).

DOI: 10.2514/3.46689

Google Scholar

[12] T. Wan, J. -X. Lin, and H. -C. Kuan, Aerodynamic Analysis of Helicopter Rotor Blades in Heavy Rain Condition, (2013).

Google Scholar

[13] T. Wan and S. -P. Pan, Aerodynamic Efficiency Study under the Influence of Heavy Rain via Two-Phase Flow Approach, in Proceedings of the 27th International Congress of Aeronautical Sciences (ICAS), Nice, France, (2010).

Google Scholar

[14] T. Wan and H. Yang, Aerodynamic Performance Investigation of a Modern Blended-Wing-Body Aircraft under the Influence of Heavy Rain Condition, in Proceedings of the 27th International Congress of Aeronautical Sciences (ICAS), Nice, France, (2010).

Google Scholar

[15] R. -M. Zhang and Y. -H. Cao, Mechanisms research of rain effects on airfoil aerodynamic performance, Flight Dynamics, vol. 29, pp.70-73, (2011).

Google Scholar

[16] R. -m. ZHANG and Y. -H. CAO, Study of aerodynamic characteristics of an airfoil in rain, Journal of Aerospace Power, vol. 9, p.022, (2010).

Google Scholar

[17] A. J. Bilanin, Scaling laws for testing airfoils under heavy rainfall, Journal of Aircraft, vol. 24, pp.31-37, (1987).

DOI: 10.2514/3.45407

Google Scholar

[18] B. CAMPBELL and G. BEZOS, Steady-state and transitional aerodynamic characteristics of a wing in simulated heavy rain, (1989).

Google Scholar