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http://dx.doi.org/10.5139/JKSAS.2018.46.8.611

Icing Wind Tunnel Tests to Improve the Surface Roughness Model for Icing Simulations  

Son, Chankyu (Depart. of Mechanical and Aerospace Engineering, Seoul National University)
Min, Seungin (Depart. of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Taeseong (Dept. of Wind Energy, Technical University of Denmark)
Kim, Sun-Tae (Agency for Defense Development)
Yee, Kwanjung (Depart. of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.8, 2018 , pp. 611-620 More about this Journal
Abstract
For the past decades, the analytic model for distributed surface roughness has been developed to improve the accuracy of the icing simulation code. However, it remains limitations to validate the developed model and determine the empirical parameters due to the absence of the quantitative experimental data which were focused on the surface state. To this end, the experimental study conducted to analyze the ice covered surface state from a micro-perspective. Above all, the tendency of the smooth zone width which occurs near the stagnation point has been quantitatively analyzed. It is observed that the smooth zone width is increased as growing the ambient temperature and freestream velocity. Next, the characteristics of the ice covered surface under rime and glaze ice have been analyzed. For rime ice conditions, ice elements are developed as the opaque circular corn in the opposite direction of freestream. The height and interval of each circular corn are increased as rising the ambient temperature. For glaze ice conditions, numerous lumps of translucent ice can be observed. This is because the beads formed by gravity concentrate and froze on the lower surface.
Keywords
Icing Wind Tunnel Test; Surface State; Smooth Zone; Circular Cone Ice Element;
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  • Reference
1 Lee, S., Broeren, A., Addy, H., Sills, R., and Pifer, E., "Development of 3D Ice Accretion Measurement Method," 4th AIAA Atmospheric and Space Environments Conference, 25-28, New Orleans, June, 2012 p. 2938.
2 Son, C., and Yee, K., "Procedure for Determining Operation Limits of High-Altitude Long-Endurance Aircraft Under Icing Conditions," Journal of Aircraft, Vol. 55, No. 1, 2018, pp. 294-309.   DOI
3 AOPA Air Safety Foundation, "Aircraft icing", AOPA Air Safety Foundation, 2002.
4 Olsen, W., and Walker, E., "Experimental Evidence for Modifying the Current Physical Model for Ice Accretion on Aircraft Surfaces," NASA TM 87184, May 1986.
5 Hansman, R. J., and Turnock, S. R., "Investigation of Surface Water Behavior During Glaze Ice Accretion," Journal of Aircraft, Vol. 25, No. 2, 1989, pp.140-147.
6 Shin, J., "Characteristics of Surface Roughness Associated with Leading Edge Ice Accretion," NASA TM-106459, Jan 1994.
7 Koss, H. H., Gjelstrup, H., and Georgakis, C. T., "Experimental Study of Ice Accretion on Circular Cylinders at Moderate Low Temperatures," Journal of Wind Engineering and Industrial Aerodynamics, Vol. 104, 2012, pp. 540-546.
8 Fortin, G., Laforte, J. L., and Ilinca, A., "Heat and Mass Transfer during Ice Accretion on Aircraft Wings with an Improved Roughness Model", International Journal of Thermal Sciences, Vol. 45, Issue. 6, 2006, pp. 595-606.   DOI
9 Georgakis, C. T., Koss, H. H., and Ricciardelli, F., "Design Specifications for a Novel Climatic Wind Tunnel for the Testing of Structural Cables," 8th International symposium on cable dynamics, Paris, Sept., 2009, pp. 333-340.
10 Wright, W. B., Rutkowski, A., "Validation Results for LEWICE 2.0," NASA/CR-1999-208690, 1999.
11 Ruff, G. A., and Berkowitz, B. M., "Users Manual for the NASA Lewis Ice Accretion Prediction Code(LEWICE)," NASA/CR-185129, May, 1990.