New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700

Biomimetics

Alessandro Ceruti¹  Federico R. Abel¹  Ruxandra M. Botez²  Marine Segui² 

[1] Department of Industrial Engineering, University of Bologna, 40136 Bologna, Italy;Laboratory of Applied Research in Active Controls, Avionics and AeroServoElasticity (LARCASE), École de Technologie Supérieure, Montréal, QC H3C1K3, Canada;

关键词: morphing;    adaptive;    winglet;    aerodynamic;    optimization;    longitudinal;   

DOI  :  10.3390/biomimetics6040054

来源: DOAJ

【 摘 要 】

This study aims to evaluates how an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the CRJ700. The aircraft geometry was slightly modified to integrate a one-rotation axis adaptive winglet. Aerodynamic characteristics of the new adaptive design were computed using a validated high-fidelity aerodynamic model developed with the open-source code OpenFoam. The aerodynamic model successively uses the two solvers simpleFoam and rhoSimpleFoam based on Reynold Averaged Navier Stokes equations. Characteristics of the adaptive winglet design were studied for 16 flight conditions, representative of climb and cruise usually considered by the CRJ700. The adaptive winglet can increase the lift-to-drag ratio by up to 6.10% and reduce the drag coefficient by up to 2.65%. This study also compared the aerodynamic polar and pitching moment coefficients variations of the Bombardier CRJ700 equipped with an adaptive versus a fixed winglet.

【 授权许可】

Unknown