Open AccessAerodynamic testing of rotors and propellers for small unmanned aerial vehicles at Technical University - Sofia
Author(s) -
Filip Panayotov,
Vladimir Serbezov,
Milcho Todorov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/878/1/012041
Subject(s) - propeller , aerodynamics , airplane , propulsion , aerospace engineering , marine engineering , aeronautics , engineering , wind tunnel , rotor (electric) , automotive engineering , turboprop , flight test , mechanical engineering
The recent massive introduction of small unmanned aerial vehicles (UAVs) brought the problem of absence of reliable aerodynamic data and models for propulsion systems that work at low Reynolds numbers. At the same time the new capabilities of modern measuring equipment permit detailed experimental investigations of the aerodynamic characteristics of such systems. This paper presents the results of work in this direction, carried out at, or with serious contribution of the Department of Aeronautics at Technical University of Sofia. Two test benches are presented. The first one is for static testing of small helicopter rotors. It is designed also with provisions for installation in suitable wind tunnels. The second one is a test stand for evaluation of electric power plants for unmanned aircraft vehicles. It can be used statically, or may be installed on the roof of an automobile for mobile testing. As an illustration experimental results are given for a specific model helicopter rotor and a small airplane propeller.