03.4 - Applied Aerodynamics
TRANSONIC NACELLE DESIGN FOR FUTURE MEDIUM RANGE AERO-ENGINES
B.D.J. Schreiner¹, D.G. MacManus¹, F. Tejero¹, F. Sanchez-Moreno¹, C. Sheaf, Rolls Royce, United Kingdom; ¹Cranfield University, United Kingdom
Aerodynamic design and optimisation of non-axisymmetric compact nacelles for medium range applications using CFD-in-the-loop to provide reduced cruise drag relative to conventional architectures. Evaluation of down selected geometries at on- and off-design conditions. Assessment of robustness and sensitivity to operating conditions using steady and unsteady 3D CFD.