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Helicopter brownout - can it be modelled?

Phillips, Catriona and Brown, Richard and Kim, Hyo Wan (2011) Helicopter brownout - can it be modelled? Aeronautical Journal, 115 (1164). pp. 123-133. ISSN 0001-9240

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Abstract

Significant progress has been made to date in modelling, computationally, the formation and development of the dust cloud that forms in the air surrounding the rotorcraft under brownout conditions. Modern computational methods are able to replicate not only the development of the dust cloud in appropriate operational scenarios, but also the sensitivity of the shape and density of the dust cloud to the detailed design of the rotorcraft. Results so far suggest that attempts to ameliorate brownout by aerodynamic means, for instance by modifying the rotor properties, will be frustrated to some extent by the inherent instability of the flow field that is produced by the helicopter. Nonetheless, very recent advances in understanding the fundamental mechanisms that lead to the formation of the dust cloud may allow substantial progress to be made once certain elements of the basic physics of the problem are more fully understood and better quantified.

Item type: Article
ID code: 30244
Notes: Impact Factor 0.412, Half-Life 8.7
Keywords: computer modelling, helicopter brownout, rotorcraft design, Mechanical engineering and machinery, Motor vehicles. Aeronautics. Astronautics, Mechanical Engineering, Aerospace Engineering, Computational Mechanics, Modelling and Simulation
Subjects: Technology > Mechanical engineering and machinery
Technology > Motor vehicles. Aeronautics. Astronautics
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date Deposited: 31 Mar 2011 10:19
Last modified: 15 Apr 2015 13:42
URI: http://strathprints.strath.ac.uk/id/eprint/30244

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