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An analysis of turbulent flow around a NACA4412 airfoil by using a segregated finite element method

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Abstract

A turbulent flow around a NACA4412 airfoil is simulated by a segregated finite element method based on the SIMPLE algorithm and the low Reynolds numberk-ω turbulence model. The originalk-ω model and a modified version of thek-ω, model (shear stress transport model) are adopted, for which grid independent solutions are obtained, respectively. From the present numerical experiment, it has been shown that the segregated finite element method with thek-ω turbulence model can predict the turbulent flow leading to separation satisfactorily with apparently reduced memories compared with the mixed integrated formulation. It is also recommended that for the analysis of external flows a modifiedk-ω model should be used instead of the originalk-ω model, which combines the features of both the standardk-ε model and the originalk-ω model.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Seoul National University, 151-742, Seoul, Korea

    Sang-Tae Chung

  2. Department of Aerospace Engineering and Mechanics, University of Minnesota, 55455, Minneapolis, Minnesota, U.S.A.

    Hyoung Gwon Choi

  3. Department of Mechanical Engineering, Seoul National University, 151-742, Seoul, Korea

    Jung Yul Yoo

Authors
  1. Sang-Tae Chung
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  2. Hyoung Gwon Choi
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  3. Jung Yul Yoo
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Chung, ST., Choi, H.G. & Yoo, J.Y. An analysis of turbulent flow around a NACA4412 airfoil by using a segregated finite element method. KSME International Journal 12, 1194–1199 (1998). https://doi.org/10.1007/BF02942593

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  • DOI: https://doi.org/10.1007/BF02942593

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