The overall aim of ODIN (off-design installed nacelles) is to address key aspects of aero-engine installation and integration for future ultra-high bypass ratio (UHBR) aero-engines, which offer propulsive efficiency improvements and potential fuel burn reduction. The project is a Clean Sky research and innovation action as part of the European Union’s Horizon 2020 programme (Grant Agreement 101007598).
  • Dates1 April 2021-31 December 2023
  • SponsorEU H2020-CS2
  • Funded鈧�3,267,561
  • Partners美姬阁; University of Cambridge; Aircraft Research Association; Loughborough University; Rolls-Royce Plc, UK (topic manager)

For UHBP engines, the typical associated larger fan diameter can lead to an increase in nacelle drag and weight that erodes the expected cycle benefits. In addition, the larger engine may be more closely coupled with the airframe. Within this context, there may be benefits to developing more compact nacelle configurations to address the engine-airframe integration considerations as well as the nacelle drag and weight and thereby translate the cycle fuel burn benefits into combined engine-airframe performance.

ODIN will develop design capability and detailed aerodynamic knowledge for compact nacelles to operate at cruise, high-lift and off-design conditions such as engine windmilling. Within a wider context of future power-plant integration, ODIN will also improve the understanding of exhaust suppression effects due to engine airframe interference as well as jet-flap interaction noise. Overall, ODIN will deliver validated design guidelines for novel nacelles to ensure cruise and off-design performance as well as the validation of computational methods for jet noise and exhaust suppression modelling.

Further information

Find out more about the project on the  and the .