Large eddy simulation of coflow jet airfoil at high angle of attack

Hong Sik Im; Ge Cheng Zha; Bertrand P.E. Dano

doi:10.1115/1.4025649

Large eddy simulation of coflow jet airfoil at high angle of attack

Hong Sik Im, Ge Cheng Zha, Bertrand P.E. Dano

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article

22 Scopus citations

Abstract

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 0 deg, 12 deg, 25 deg, and 30 deg with momentum coefficients of C_μ = 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.

Original language	English (US)
Article number	4025649
Journal	Journal of Fluids Engineering, Transactions of the ASME
Volume	136
Issue number	2
DOIs	https://doi.org/10.1115/1.4025649
State	Published - Jan 1 2014

ASJC Scopus subject areas

Mechanical Engineering

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Im, H. S., Zha, G. C., & Dano, B. P. E. (2014). Large eddy simulation of coflow jet airfoil at high angle of attack. Journal of Fluids Engineering, Transactions of the ASME, 136(2), [4025649]. https://doi.org/10.1115/1.4025649

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