Study of hybrid air vehicles stability using computational fluid dynamics

Carrión, M., Biava, M., Barakos, G.N. and Stewart, D. (2017) Study of hybrid air vehicles stability using computational fluid dynamics. Journal of Aircraft, 54(4), pp. 1328-1339. (doi: 10.2514/1.C033987)

Abstract

This paper uses Computational Fluid Dynamics to predict aerodynamic damping of airships or hybrid air vehicles. This class of aircraft is characterised by large lifting bodies combining buoyancy and circulatory lift. Damping is investigated via forced oscillations of the vehicle in pitch and yaw. The employed method is verified using data for lighter than air vehicles. The use of fins and stabilisers was found to be beneficial. The rear part of the body was dominated by separated flow that containedmore frequencies than the forcing frequency imposed on the body. The final design is seen to be dynamically stable across a range of conditions for small pitch angles.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George and Biava, Dr Massimo and Carrion, Ms Marina
• Authors: Carrión, M., Biava, M., Barakos, G.N., and Stewart, D.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Journal of Aircraft
• Publisher: American Institute of Aeronautics and Astronautics
• ISSN: 0021-8669
• ISSN (Online): 1533-3868
• Published Online: 19 December 2016
• Copyright Holders: Copyright © 2017 American Institute of Aeronautics and Astronautics
• First Published: First published in Journal of Aircraft 54(4): 1328-1339
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher