Design Requirements for 2-D Aero-elastic Experiments on Airfoils

Abstract

Given the prime importance of wind tunnel setup when it comes to aero-elastic study, the main intent of this project is to devise a mechanism for supporting system of 2D aero-elasticity experiment in the Red Wind Tunnel Facility at DTU that allows three-degree-of-freedom motion of the rigid model. This project work is mainly inspired by the fact that deep stall aero-elastic
Characteristics of wind turbines, which govern the design of stall-regulated wind turbines at high wind speed, have been barely investigated in literatures so far. So in redesigning the test section of the wind tunnel facility the following sub-tasks are included: (1) Literature survey on test section design/construction for 2D aero-elastics testing of aerofoils. (2) Panel code simulation of wing/tunnel interaction. (3) Adapted design of new test section to the Red wind tunnel facility. (4) To some extent building and testing the new test section. The implementation and actual design may be too time demanding to be fulfilled within the given time slot, however a specific design for the Red tunnel facility is documented through flow analysis and drawings at the end of the project. Among which the first and third item have been addressed and the fourth item partially as well, but the second item is still to be done with the flow solver Q3UIC which was developed by Néstor in DTU. Since the aerodynamic code of this tool is only for pitching motion, extending this tool for this thesis work happened to be out of scope.