Autors: Panayotov, F. K., Todorov, M. D., Massouh F., Dobrev I.
Title: Experimental study of a helicopter rotor model in hover
Keywords: helicopter theory

Abstract: his paper presents the results from an experimental study of the aerodynamic performance and efficiency of a model helicopter rotor in steady hover at Reynolds numbers below 70000. Results are shown for a two-, three- and four-bladed rotor configuration for various pitch angles and speeds of rotation. The influence of the rotor solidity on the aerodynamic efficiency in terms of the Figure of Merit is highlighted. The profile drag component is evaluated as a function of the Reynolds number. The internal friction losses of the test stand are estimated and taken into account in all measurements. A brief description of the designed test stand is provided. The experimental setup allows for the measurement of thrust and torque of helicopter rotors with diameters of up to 1 meter, for pitch angles varying from -12° to +24° and for rotational speeds of up to 3000 RPM. Conclusions are drawn about the aerodynamic performance and efficiency of the studied rotor configurations. This experimental



    MATEC Web of Conferences, vol. 234, 2018, Bulgaria, EDP Sciences,

    Цитирания (Citation/s):
    1. Hnidka, J., Rozehnal, D., Calculation of the maximum endurance of a small unmanned aerial vehicle in a hover, IOP Conference Series: Materials Science and Engineering, Volume 664, Issue 1, 29 October 2019, Article number 012002, 11th International Scientific Conference on Aeronautics, Automotive and Railway Engineering and Technologies, BulTrans 2019; Lazur Holiday HouseSozopol; Bulgaria; 10 September 2019 through 12 September 2019; Code 155265 - 2019 - в издания, индексирани в Scopus или Web of Science
    2. Podsędkowski, M., Konopiński, R., Obidowski, D., Koter, K., Variable pitch propeller for UAV-experimental tests, Energies, Volume 13, Issue 20, October 2020, Article number 5264 - 2020 - в издания, индексирани в Scopus или Web of Science

    Вид: публикация в национален форум с межд. уч., индексирана в Scopus