A Reynolds-averaged Navier–Stokes (RANS) computational study was conducted to investigate the effect of various variable camber continuous trailing edge flap (VCCTEF) configurations on the lift and drag of a NASA generic transport model (GTM) wing section. Out of the five two-dimensional (2D) VCCTEF configurations considered with varying camber in the three-segment flap region, with a total deflection of 6 deg, the best stall performance was exhibited by the circular and parabolic arc camber flaps. Both circular and parabolic arc flaps give similar lift performance, with the circular arc yielding a higher lift coefficient and parabolic arc resulting in the lowest drag and hence the best L/D performance at design Cl. Analysis of results based on linear theory shows excellent agreement between computed and theoretical incremental lift.
Drag Characterization Study of Variable Camber Continuous Trailing Edge Flap
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received September 9, 2017; final manuscript received April 16, 2018; published online May 18, 2018. Assoc. Editor: Ioannis K. Nikolos.This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited.
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Kaul, U. K., and Nguyen, N. T. (May 18, 2018). "Drag Characterization Study of Variable Camber Continuous Trailing Edge Flap." ASME. J. Fluids Eng. October 2018; 140(10): 101108. https://doi.org/10.1115/1.4040070
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