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Implementation of Active Flow Control on RC Airplane


Expanding on the research from the flow separation control section, we have built a model airplane and performed field tests to see if the use of microjet-based actuators is a practical application in the small-scale actual flying environment. The model was selected by some undergraduate research assistants, who also performed the tests.

Wind tunnel tests including CP measurements, Surface Flow Visualizations, and tuft tests were performed to determine the separation point. Microjets were installed and some of the tests were repeated showing an increase in critical AOA (α) of about 3 degrees. The following objectives have been set for testing the aircraft, now fully assembled:

  • Ensure that the airplane will fly with the added weight
  • Demonstrate flow reattachment at the wing tips during a high AOA maneuver
  • Demonstrate roll control using the microjets at small α's

6' Telemaster Electro ARF
The model chosen for the project

Design Schematic showing actuator system
Click on the picture for a larger view

The model was constructed using the schematic above and tested at the RC airfield. The primary goal was to demonstrate flow reattachment using the microjet actuators. We successfully put the airplane into a stall and activated the microjets over the wing tips.

The video can be seen by clicking here. Please right-click and save-as.

Modified airplane ready to fly