Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Helicopter brownout - can it be modelled?

Brown, R.E. and Phillips, Catriona and Kim, Hyo Wan (2010) Helicopter brownout - can it be modelled? In: Royal Aeronautical Society Rotorcraft Group Conference: Operating Helicopters Safely in a Degraded Visual Environment, 2010-06-16 - 2010-06-17, London, UK.

[img]
Preview
PDF (strathprints027364.pdf)
Download (1396Kb) | Preview

    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: Conference or Workshop Item (Paper)
    ID code: 27364
    Notes: Session 5-Paper 17
    Keywords: flow field, brownout conditions, dust cloud formation, rotorcraft, 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
    Related URLs:
      Depositing user: Ms Katrina May
      Date Deposited: 10 Sep 2010 12:07
      Last modified: 02 Jun 2014 21:00
      URI: http://strathprints.strath.ac.uk/id/eprint/27364

      Actions (login required)

      View Item

      Fulltext Downloads: