HICON AERODYNAMICS - HIGH LIFT AERODYNAMIC DESIGN FOR THE FUTURE

摘要

An overview of the current Airbus high-lift design process is presented, including the use of 3D computational fluid dynamics (CFD), high Reynolds number testing and the establishment of aeroacoustic design guidelines. One of the aims of current research activities performed within the HICON project is to gain valuable experience within these fields. An example of ongoing work in this area is presented via the aerodynamic design and optimization of a dropped hinge flap. Dropped hinge flap setting variations have been performed with 2D, 2.5D and 3D CFD methods. The results have been compared to wind tunnel tests performed under low Reynolds number conditions. Results to date suggest a good comparison between 2.5D and 3D CFD results (at flight Reynolds number). The trends identified with 2.5D and 3D CFD have not been seen in the low Reynolds number wind tunnel testing. Ongoing work aims to identify the reasons for these differences.