To develop a highly efficient propeller for small-scale unmanned aerial vehicles, the influences of induced and profile losses determined by design parameters are investigated at . The propeller blade shapes, such as chord length and twist angle distributions in the spanwise direction, are determined using the Adkins–Liebeck method. For a fixed designated thrust value and a forward velocity, the influences of a propeller normalized radius, a blade number, and a tip speed ratio on the propeller performance are discussed. Results show that the profile loss can be larger than the induced loss. For such a case, it is beneficial to reduce the blade number and the propeller rotational speed to increase the blade chord length and the Reynolds number; consequently, the propeller efficiency increases even if the induced drag increases.
Propeller Design and Loss Mechanisms in Low-Reynolds-Number Flows
Journal of Propulsion and Power ; 32 , 6 ; 1378-1385
2016-06-06
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Propeller Design and Loss Mechanisms in Low-Reynolds-Number Flows
Online Contents | 2016
|Propeller Design and Loss Mechanisms in Low-Reynolds-Number Flows
Online Contents | 2016
|NTIS | 1971
|TIBKAT | 1971
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