Mitigating loads by means of an active slat
| Autor: | Jochen Wild, Tim Homeyer, Joachim Peinke, Johannes Riemenschneider, Lars Neuhaus, Oliver Huxdorf, Michael Hölling, Piyush Singh |
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| Jazyk: | němčina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Airfoil History Inflow Aerodynamics Mechanics 01 natural sciences 010305 fluids & plasmas Computer Science Applications Education Adaptronik Lift (force) Physics::Fluid Dynamics wind turbine slat Range (aeronautics) 0103 physical sciences load mitigation Transportflugzeuge 010306 general physics Reduction (mathematics) Turbulent inflow aerodynamics Wind tunnel |
| Popis: | An active slat on an airfoil is tested in the wind tunnel to reduce lift fluctuations caused by inflow angle fluctuations. The airfoil with an integrated slat allows to control the gap size between slat and main body. The variation of the gap size leads to dfferent aerodynamic properties. This behavior is investigated in a comprehensive characterization of the aerodynamics for different positions of the static slat and a wide range of angles of attack. A sinusoidal inflow angle fluctuation is generated by an active grid. These fluctuations are causing lift force fluctuations at the airfoil with static slat. The slat gap size then is varied dynamically synchronous to the inflow angle uctuations. Depending on the phase shift between slat gap size variation and inflow angle fluctuation a reduction of the lift force is observed. The slat system is found to be capable of mitigating load fluctuations caused by turbulent inflow. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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