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http://dx.doi.org/10.5139/JKSAS.2022.50.1.1

Experimental Study on Aerodynamic Performance and Wake Characteristics of the Small Ducted Fan for VTOL UAV  

Shin, Soo-Hee (Dept. of Aerospace System Engineering, Korea University of Science and Technology)
Lee, Seung-Hun (Korea Aerospace Research Institute)
Kim, Yang-Won (Korea Aerospace Research Institute)
Cho, Tae-Hwan (Dept. of Aerospace System Engineering, Korea University of Science and Technology)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.1, 2022 , pp. 1-12 More about this Journal
Abstract
Wind tunnel test for a small scale electric ducted fan with a 104mm diameter was conducted to analyze the aerodynamic characteristics when it was used as a propulsion system of tilt-propeller UAV. Experimental conditions were derived from flight conditions of a sub-scaled OPPAV. Forces and moments of the ducted fan model were measured by a 6-axis balance and 3-dimensional wake vectors which could induce an aerodynamic influence in the vehicle were measured by 5-hole probes. Thrust and torque on hover and cruise conditions were measured and analyzed to drive out the operating conditions when it was applied in the sub-scaled OPPAV. On transition conditions, thrust keep its value with tilt angle variation below 40° and increase after that. But, sideforce increase constantly until 75°. The maximum axial velocity in the wake on hover and cruise conditions was around 60m/s and tangential velocity was around 12m/s. The position of the maximum axial velocity and vortex center move off the fan rotation center line as the tilt angle increases.
Keywords
Small Scale Ducted fan; Wind Tunnel Test; Aerodynamic Characteristics; 3-Dimensional Flow Field;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Ryu, M. H., Cho, L. S. and Cho, J. S., "Experimental Study on the Aerodynamic Characteristics of the Ducted fan for the Propulsion of a Small UAV," Journal of The Korean Society for Aeronautical and Space Sciences, Vol. 40, No. 5, May 2012, pp. 413~422.   DOI
2 Akturk, A., Shavalikul, A. and Camci, C., "PIV Measurement and Computational Study of a 5-inch Ducted Fan for V/STOL UAV Applications," 47th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, Florida, January 2009.
3 Choi, S. W., "Configuration design and performance analysis for the sub-scaled OPPAV," Proceeding of The Korean Society for Aeronautical and Space Science Fall Conference, November 2019, pp. 629~630.
4 www.epf.com.tw/store/index.php?route=product/product&path=7_12_13&product_id=5
5 www.aeroprobe.com/l-shaped-probe/#1492296220035-2d83d6ab-26fe
6 Anita, I. and Robert, W., "Performance Study of a Ducted Fan System," American Helicopter Society Aerodynamics, Acoustics, and Test and Evaluation Technical Specialists Meeting, 2002.
7 Park, Y. M., Bang, H. S., Jeong, J. D. and Lee, H. C., "Comparison of Ducted Fan and Rotor Aerodynamic Performances for VTOL UAV," Proceeding of The Korean Society for Aeronautical and Space Science Fall Conference, November 2014, pp. 1055~1058.
8 Wang, B., Guo, Z., Wang, P., Shan, S. and How, X., "Investigation of the Aerodynamic Characteristics of Ducted Fan System," World Academy of Science, Engineering and Technology, Vol. 6, 2012.