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Comparative Study on the Prediction of Aerodynamic Characteristics of Aircraft with Turbulence Models

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Abstract

The RANS equations are widely used to analyze complex flows over aircraft. The equations require a turbulence model for turbulent flow analyses. A suitable turbulence must be selected for accurate predictions of aircraft aerodynamic characteristics. In this study, numerical analyses of three-dimensional aircraft are performed to compare the results of various turbulence models for the prediction of aircraft aerodynamic characteristics. A 3-D RANS solver, MSAPv, is used for the aerodynamic analysis. The four turbulence models compared are the Sparlart–Allmaras (SA) model, Coakley’s \(q-\omega \) model, Huang and Coakley’s \(k-\varepsilon \) model, and Menter’s \(k-\omega \) SST model. Four aircrafts are considered: an ARA-M100, DLR-F6 wing–body, DLR-F6 wing–body–nacelle–pylon from the second drag prediction workshop, and a high wing aircraft with nacelles. The CFD results are compared with experimental data and other published computational results. The details of separation patterns, shock positions, and \(C_{p}\) distributions are discussed to find the characteristics of the turbulence models.

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Abbreviations

u :

Velocity component in the x direction

v :

Velocity component in the y direction

w :

Velocity component in the z direction

\(\rho \) :

Density

p :

Pressure

\(C_{L}\) :

Lift coefficient

\(C_{D}\) :

Drag coefficient

\(\hbox {Re}\) :

Reynolds number

\(\alpha \) :

Angle of attack

\(\eta \) :

Normalized span location

k :

Turbulent kinetic energy

q :

Turbulent velocity scale

\(\omega \) :

Specific dissipation rate

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Acknowledgements

This work was supported by Korea Aerospace Research Institute (KARI) and Inha University.

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Authors and Affiliations

  1. Hanwha Defense System, Changwon, 51540, Republic of Korea

    Yujin Jang

  2. Electronic Warfare Research Center, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea

    Jinbum Huh

  3. Hanwha Defense System, Changwon, 51540, Republic of Korea

    Namhun Lee

  4. Department of Aerospace Engineering, INHA University, Incheon, 22212, Republic of Korea

    Seungsoo Lee

  5. Korea Aerospace Research Institute, Daejeon, 34133, Republic of Korea

    Youngmin Park

Authors
  1. Yujin Jang
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  2. Jinbum Huh
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  3. Namhun Lee
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  4. Seungsoo Lee
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  5. Youngmin Park
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Corresponding author

Correspondence to Seungsoo Lee.

Additional information

An earlier version of this paper was presented at APISAT 2017, Seoul, Korea, October 2017.

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Jang, Y., Huh, J., Lee, N. et al. Comparative Study on the Prediction of Aerodynamic Characteristics of Aircraft with Turbulence Models. JASS 19, 13–23 (2018). https://doi.org/10.1007/s42405-018-0022-6

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  • DOI: https://doi.org/10.1007/s42405-018-0022-6

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