Skip to main content

CFD Simulations of Tiltrotor Configurations in Hover

Buy Article:

$30.00 plus tax (Refund Policy)

Navier‐Stokes computational fluid dynamics calculations are presented for isolated, half‐span, and full‐span V‐22 tiltrotor hover configurations. These computational results extend the validity of CFD hover methodology beyond conventional applications to tiltrotor configurations. Computed steady‐state, isolated rotor performance agrees well with experimental measurements, showing little sensitivity to grid resolution. However, blade‐vortex interaction flowfield details are sensitive to numerical dissipation and are more difficult to model accurately. Time‐dependent, dynamic, half‐ and full‐span installed configurations show sensitivities in performance to the tiltrotor fountain flow. As such, the full‐span configuration exhibits higher rotor efficiency and lower airframe download than the half‐span configuration. Half‐span rotor installation trends match available half‐span data, and airframe downloads are reasonably well predicted. Overall, the CFD solutions provide a wealth of flowfield details that can be used to analyze and improve tiltrotor aerodynamic performance.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2005-01-01

More about this publication?
  • The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

    Journal subscribers who are AHS members log in here if you are not already logged in.

    Authors can find submission guidelines and related information on the AHS website.

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more