A review of installation effects of ultra-high bypass ratio engines
Journal article, 2020
UHBPR adoption can prevent a real system performance improvement, due to interdependent counteracting factors and enhanced interference between engine and airframe. This paper reviews the installation effects on underwing-mounted UHBPR turbofan engines, first presenting the cycle design studies and how they are affected by considering integration. The advancements in nacelle components modelling and optimisation are then reviewed, where new numerical models, statistical methods and optimisation algorithms are employed to tackle the inherently multi-objective problems. The computational estimation of installation effects and the studies on optimal engine position are also presented, highlighting the overall effect on the aerodynamic characteristics.
Finally, the wind tunnel tests using powered engine simulators are discussed. The tools developed to quantify the thrust and drag figures of installed propulsors and obtain indications on their best underwing location now allow quite accurate estimations, both in numerical and experimental simulations. The higher level of interaction and the increased mutual sensitivity of engine operation and wing flow field, however, suggest the need to elaborate
closely coupled methods to correctly replicate these effects and an assessment of current wind tunnel practices for the design and operation of powered engine simulators.
Installation effect, Engine integration, UHBPR
University of Padua
University of Padua
Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics
DNW German-Dutch Wind Tunnel
Christopher TJ Sheaf
Progress in Aerospace Sciences
0376-0421 (ISSN)Vol. 119 100680
Installed adVAnced Nacelle uHbr Optimisation and Evaluation (IVANHOE)
European Commission (EC), 2019-10-01 -- 2022-09-30.
Areas of Advance
C3SE (Chalmers Centre for Computational Science and Engineering)