Document Type : Original Article


1 Sharif University of Technology

2 Professor, Aerospace Engineering , Sharif University of Technology

3 Faculty of Energy Engineering; University of Kerman


With the advancement of science and technology, ultra-light drones with electric propulsion hold many applications. In these drones, the electric motor is the primary consumer of energy. Thus, having an accurate model of power consumption of the motor, propeller, and battery set can play an essential role in determining the drone's flight duration. This paper aims to model the behavior of two sets of motor and propeller in the wind tunnel. One motor set has a low speed, and the other has a medium speed. Also, after the above modeling, the models of speed-power, thrust-power, and speed-efficiency are extracted. Then, a lithium polymer battery with a minimal voltage drop for the drone is used. In the operating speed, the flight time of the desired drone is obtained. The power consumption, speed, and thrust models are obtained using interpolation. Finally, the motor that consumes less power and has a longer flight time is selected.


[1].   A. Noth, S. Bouabdallah, S. Michaud, R. Siegwart, W. Engel, “SKY-SAILOR Design of an autonomous solar powered Martian airplane”, ETH Zurich, Conference paper, 2004.
[2].   L. Wirth, P. Oettershagen, J. Ambuhi, and R.Y. Siegwart, “Meteorological path planning using dynamic programming for a solar-powered UAV”,ETH Zurich, Conference paper, 2015.
[3].  T. Shi, P. Ma, X. Zheng, X. Chang, and X. Duan, “Experimental study on dynamic efficiency quad-rotor UAV”, International Conference on Advanced Electronic Science and Technology (AEST 2016) 881-890.
[4].   امیرحسین غلامی، محمد حائری، علیرضا دودمان تیپی، "ساخت تونل باد سرعت پایین و کم هزینه"، بیست و هفتمین کنفرانس مهندسان مکانیک ایران، تهران، دانشگاه تربیت مدرس، 10 تا 12 اردیبهشت 1398.
[5].   M.S. Selig and B.D. McGranahan, “Wind tunnel aerodynamic tests of six airfoils for use on small wind turbines”, Journal of Solar Energy Engineering-Transactions of The ASME 126(4) (2004) 986-1001.
[6].   S. Junk, W. Schroder, and S. Schrock, “Design of additively manufactured wind tunnel models for use with UAVs”, Procedia CIRP 60 (2017) 241-246.