Skip to main content
padlock icon - secure page this page is secure

Prediction of Fuselage Surface Pressures in Rotor–Fuselage Interactions Using an Integral Solution of Poisson Equation

Buy Article:

$35.00 + tax (Refund Policy)

The fuselage of a helicopter is strongly affected by the rotor and its wake under hovering and low-speed forward flight conditions. Unsteady loading is observed on the fuselage surface owing to the blade passing effect and periodic collision of the wake vortices. Panel and vortex methods were combined for simulating rotor–fuselage aerodynamic interaction. Although the panel method involves the use of Bernoulli's equation to obtain the surface pressure, it is difficult to consider the increase in stagnation pressure in the vortical flow region under the rotor. In this study, an integral solution of the Poisson equation was adopted to calculate the pressure at the surface of the fuselage. The flow around the Georgia Institute of Technology's rotor–fuselage model was simulated to demonstrate the increase in stagnation pressure along the topline of the fuselage, during which unsteady loading caused by tip vortex impingement was observed. The ROBIN (rotor body interaction) model, which considers a generic helicopter fuselage, was also used to analyze the unsteady pressures at the top and the side of the fuselage. For the models, the Poisson equation was found to accurately predict both unsteady pressure fluctuation and stagnation pressure increase on the fuselage in the presence of the rotor wake without any special treatment.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: October 1, 2014

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

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

    Authors can find submission guidelines and related information on the VFS 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
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