Pickles, D.J., Green, R.B. and Giuni, M. (2018) Rotor wake interactions with an obstacle on the ground. Aeronautical Journal, 122(1251), pp. 798-820. (doi: 10.1017/aer.2018.7)
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Abstract
An investigation of the flow around an obstacle positioned within the wake of a rotor is described. A flow visualisation survey was performed using a smoke wand and particle image velocimetry, and surface pressure measurements on the obstacle were taken. The flow patterns were strongly dependent upon the rotor height above the ground and obstacle, and the relative position of the obstacle and rotor axis. High positive and suction pressures were measured on the obstacle surfaces, and these were unsteady in response to the passage of the vortex driven rotor wake over the surfaces. Integrated surface forces are of the order of the rotor thrust, and unsteady pressure information shows local unsteady loading of the same order as the mean loading. Rotor blade-tip vortex trajectories are responsible for the generation of these forces.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Green, Dr Richard and Giuni, Dr Michea and Pickles, David |
| Authors: | Pickles, D.J., Green, R.B., and Giuni, M. |
| College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity |
| Journal Name: | Aeronautical Journal |
| Publisher: | Cambridge University Press |
| ISSN: | 0001-9240 |
| ISSN (Online): | 2059-6464 |
| Published Online: | 06 March 2018 |
| Copyright Holders: | Copyright © 2018 Royal Aeronautical Society |
| First Published: | First published in Aeronautical Journal 122(1251):798-820 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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