Large eddy simulation (LES) is conducted to investigate coflow jet (CFJ) airfoil flows at high angle of attack (AOA). The Smagorinsky model with Van Driest damping is employed to resolve the subgrid-scale stress. The fifth-order weighted essentially non-oscillatory (WENO) scheme is used for reconstruction of the inviscid flux and the fourth-order central differencing for the viscous flux. The LES results at an AOA of , , , and with momentum coefficients of = 0.15 and 0.08 are compared with the experiment to understand the flow structure of the jet mixing and flow separation. The quantitative prediction of lift and drag and qualitative prediction of vortex structures are in good agreement with experiment.
Large Eddy Simulation of Coflow Jet Airfoil at High Angle of Attack
Dept. of Mechanical and Aerospace Engineering,
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received April 15, 2013; final manuscript received September 6, 2013; published online November 12, 2013. Assoc. Editor: Zvi Rusak.
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Im, H., Zha, G., and Dano, B. P. E. (November 12, 2013). "Large Eddy Simulation of Coflow Jet Airfoil at High Angle of Attack." ASME. J. Fluids Eng. February 2014; 136(2): 021101. https://doi.org/10.1115/1.4025649
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