As part of the Aeronautics Research Program V (LuFo V-3) project Move-IntegR, funded by the German Federal Ministry for Economic Affairs and Climate Action (BMWK), the German Aerospace Center (DLR) and its project partners are developing integrated multifunctional control surface concepts for laminarized and high-aspect-ratio wings. The project can be divided into two main work packages: First, project participants are developing integrated two-dimensional position-variable shock control bumps on the spoilers of hybrid laminar flow control (HLFC) wings. This is based on the preliminary work from the LuFo V-1 project LDAinOP. The application of shock control bumps will increase the operational application range of HLFC wings, decrease fuel consumption and reduce emissions. Furthermore, the scientists are working on structural concepts for long slender flaps to enable the realization of highly stretched wings. This should lead to an increase in aircraft performance.
In Move-IntegR, the project participants will rely on a multidisciplinary development process to achieve earlier design maturity. This is intended to save time, reduce costs and increase quality and performance. In addition to aerodynamic considerations, aeroelastic, structural and systems-engineering investigations are carried out.
The DLR Institute of Aerodynamics and Flow Technology and the Institute of Aerodynamics and Gas Dynamics of the University of Stuttgart are responsible for the aerodynamic design of the bumps. The aim of the DLR is to optimize the bump in such a way that it provides drag-reduced flow within a wide range of flight conditions. Due to the multidisciplinary approach, structural boundary conditions are already taken into account during the aerodynamic optimization.