Evaluation of High Lift System with Oscillatory Blowing in 2.5D Configuration

Following the successful results of the test campaign on 2D configuration of the oscillatory blowing system in the flap gap of the INCAS F15 wind tunnel model, extensive evaluation of the 2.5D effects have been initiated in order to enable solid understanding of the fluidic integrations mechanisms and to validate this technology at a higher TRL level. Initial experiments on 2D configuration were based on work performed in AVERT EU FP6 project where the oscillatory flap gap blowing system was designed and tested on a INCAS F15 2D wing model. In 2.5D test cases this work has been extended so that the proposed system may be selected as a mature technology in the JTI Clean Sky, Smart Fixed Wing Aircraft ITD. New experimental setup was used and also updated electronics for the blowing system have been introduces. This was complemented by a new extension for the data acquisition system and visualization tools. Complex post-processing of the experimental data was mainly oriented towards system efficiency and TRL evaluation for this active technology.