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Numerical Simulation of a Simplified High-Lift CRM Configuration Embedded with Fluidic ActuatorsNumerical simulations have been performed for a simplified high-lift configuration that is representative of a modern transport airplane. This configuration includes a leading-edge slat, fuselage, wing, nacelle-pylon and a simple hinged flap. The suction surface of the flap is embedded with multiple rows of fluidic actuators to reduce the extent of reversed flow regions and improve the aerodynamic performance of the configuration with flap in a deployed state. In the current paper, a Lattice Boltzmann Method based high-fidelity computational fluid dynamics (CFD) code, known as PowerFLOW® is used to simulate the entire flow field associated with this configuration, including the flow inside the actuators. A fully compressible version of the PowerFLOW® code that has been validated for high speed flows is used for the present simulations to accurately represent the transonic flow regimes that are encountered in the flow field generated by the actuators operating at higher mass flow (momentum) rates required to mitigate reverse flow regions on the suction surfaces of the main wing and the flap. The numerical solutions predict the expected trends in aerodynamic forces as the actuation levels are increased. More efficient active flow control (AFC) systems and actuator arrangement for lift augmentation are emerging based on the parametric studies conducted here prior to wind tunnel tests. These numerical solutions will be compared with experimental data, once such data becomes available.
Document ID
20190000881
Acquisition Source
Langley Research Center
Document Type
Conference Paper
External Source(s)
doi:10.2514/6.2018-3063
Authors
Vatsa, Veer N. (NASA Langley Research Center Hampton, VA, United States)
Duda, Benjamin (Exa GmbH Munich, Germany)
Lin, John C. (NASA Langley Research Center Hampton, VA, United States)
Melton, Latunia P. (NASA Langley Research Center Hampton, VA, United States)
O’Connell, Matthew (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
February 21, 2019
Publication Date
June 25, 2018
Subject Category
Aerodynamics
Report/Patent Number
AIAA 2018-3063
NF1676L-28525
Meeting Information
Meeting: AIAA Aviation Forum 2018
Location: Atlanta, GA
Country: United States
Start Date: June 25, 2018
End Date: June 29, 2018
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
WBS: WBS 109492..02.0.01.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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