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

21 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

Fingerprint

ASJC Scopus subject areas

Mechanical Engineering

Cite this

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

@article{ca0e9caea82e410bb445d4d04813c079,

title = "Large eddy simulation of coflow jet airfoil at high angle of attack",

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 Cμ = 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.",

author = "Im, {Hong Sik} and Zha, {Ge Cheng} and Dano, {Bertrand P.E.}",

year = "2014",

month = jan

day = "1",

doi = "10.1115/1.4025649",

language = "English (US)",

volume = "136",

journal = "Journal of Fluids Engineering, Transactions of the ASME",

issn = "0098-2202",

publisher = "American Society of Mechanical Engineers(ASME)",

number = "2",

}

TY - JOUR

T1 - Large eddy simulation of coflow jet airfoil at high angle of attack

AU - Im, Hong Sik

AU - Zha, Ge Cheng

AU - Dano, Bertrand P.E.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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 Cμ = 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.

AB - 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 Cμ = 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.

UR - http://www.scopus.com/inward/record.url?scp=84888084501&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84888084501&partnerID=8YFLogxK

U2 - 10.1115/1.4025649

DO - 10.1115/1.4025649

M3 - Article

AN - SCOPUS:84888084501

VL - 136

JO - Journal of Fluids Engineering, Transactions of the ASME

JF - Journal of Fluids Engineering, Transactions of the ASME

SN - 0098-2202

IS - 2

M1 - 4025649

ER -

Access to Document

10.1115/1.4025649