Vertical Autorotation of a Single-Winged Samara

[+] Author and Article Information
A. Rosen, D. Seter

Faculty of Aerospace Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel

J. Appl. Mech 58(4), 1064-1071 (Dec 01, 1991) (8 pages) doi:10.1115/1.2897683 History: Received January 04, 1990; Revised October 16, 1990; Online March 31, 2008


A derivation of a theoretical model for the vertical autorotation of a samara wing is presented. The dynamic effects are treated in an accurate manner. The aerodynamic effects are calculated by using the blade element/momentum theory. Because of basic differences between the mode of operation of a samara wing and other rotary wings, the model differs from existing rotary wing models. An experimental setup, aimed at verifying the theoretical model, is also described. Comparison between theoretical and experimental results are presented.

Copyright © 1991 by The American Society of Mechanical Engineers
Topics: Momentum , Blades , Wings
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