| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 757218 | Chinese Journal of Aeronautics | 2016 | 5 Pages |
Abstract
The optimum loading for rotors has previously been found for hover, climb and wind turbine conditions; but, up to now, no one has determined the optimum rotor loading in descent. This could be an important design consideration for rotary-wing parachutes and low-speed descents. In this paper, the optimal loading for a powered rotor in descent is found from momentum theory based on a variational principle. This loading is compared with the optimal loading for a rotor in hover or climb and with the Betz rotor loading (which is optimum for a lightly-loaded rotor). Wake contraction for each of the various loadings is also presented.
Related Topics
Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Ramin Modarres, David A. Peters,