26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-5.11.2

MODELLING OF STATIC AERODYNAMICS OF HELICOPTER UNDERSLUNG LOADS

D. I. Greenwell
City Univ., UK

Keywords: underslung loads, bluff bodies, aerodynamic modelling, MILVAN, CONEX

The complex aerodynamics of rectangular underslung loads can lead to severe stability problems, but are difficult to represent in flight dynamics models. A new approach is presented, based on a more appropriate form for the basic model, partitioned into elements related to fundamental features of bluff-body flows.

view full paper