Analysis of hybrid air vehicles using computational fluid dynamics

Carrion, M., Steijl, R., Barakos, G. and Stewart, D. (2016) Analysis of hybrid air vehicles using computational fluid dynamics. Journal of Aircraft, 53(4), pp. 1001-1012. (doi:10.2514/1.C033402)

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Abstract

This paper presents a study of the aerodynamics of shapes pertinent to lighter-than-air vehicles, using computational fluid dynamics. The work begins with the validation of the computational-fluid-dynamics method using a 6:1 prolate spheroid. The validated method is then employed for the study of the flow around a shape similar to the Airlander 50 airship of Hybrid Air Vehicles Ltd. An overview of the flow around this kind of shape is presented, supported by pressure survey, flow visualisation and transition effects, as function of the Reynolds number. The sensitivity of the transition location to the Reynolds number is also demonstrated, and then, the role of each component of the vehicle is analysed. The effect of each component on the flow-field, the lift and drag, and stability in pitch are provided. It was found that the fins contributed the most to increase the lift and drag coefficients.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barakos, Professor George and Carrion, Ms Marina and Steijl, Dr Rene
Authors: Carrion, M., Steijl, R., Barakos, G., and Stewart, D.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Journal of Aircraft
Publisher:American Institute of Aeronautics and Astronautics
ISSN:0021-8669
ISSN (Online):1533-3868
Published Online:12 February 2016
Copyright Holders:Copyright © 2015 The Authors
First Published:First published in Journal of Aircraft 53(4): 1001-1012
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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