Numerical simulations have been performed for a vertical tail configuration with deflected rudder. The suction surface of the main element of this configuration is embedded with an array of 32 fluidic actuators that produce oscillating sweeping jets. Such oscillating jets have been found to be very effective for flow control applications in the past. In the current paper, a high-fidelity computational fluid dynamics (CFD) code known as the PowerFLOW® code is used to simulate the entire flow field associated with this configuration, including the flow inside the actuators. The computed results for the surface pressure and integrated forces compare favorably with measured data. In addition, numerical solutions predict the correct trends in forces with active flow control compared to the no control case. Effect of varying yaw and rudder deflection angles are also presented. In addition, computations have been performed at a higher Reynolds number to assess the performance of fluidic actuators at flight conditions. Unsteady characteristics of oscillatory micro-jets issued from these actuators are also analyzed in this paper.
Simulation of a High-Lift Configuration Embedded with Fluidic Actuators Using PowerFLOW Code
Veer N. VatsaRelated information
1NASA Langley Research Center, Hampton,VA 23681
*Senior Research Scientist, Computational AeroSciences Branch, Research Directorate.
, Damiano CasalinoRelated information*Senior Research Scientist, Computational AeroSciences Branch, Research Directorate.
2Exa GmbH, Curiestrasse 4, D-70563, Stuttgart, Germany
†Technical Director, Aerospace, Exa GmbH; Member AIAA.
, John C. LinRelated information†Technical Director, Aerospace, Exa GmbH; Member AIAA.
3NASA Langley Research Center, Hampton,VA 23681
‡Senior Research Engineer, Flow Physics and Control Branch, Research Directorate.
, Jason AppelbaumRelated information‡Senior Research Engineer, Flow Physics and Control Branch, Research Directorate.
4Exa GmbH, Curiestrasse 4, D-70563, Stuttgart, Germany
§Aerospace Applications Engineer, Exa GmbH.
§Aerospace Applications Engineer, Exa GmbH.
Published Online: April 27, 2015
Abstract