Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model

Taisuke Nambu, Atsushi Hashimoto, Keiichi Murakami, Tetsuya Satou

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    To analyze wall interference of a transonic wind tunnel, flows of two-dimensional airfoil with wind tunnel porous walls are computed by CFD and the new porous wall model. First, the computational results are validated by comparing with measurement. The porous wall model shows high accuracy enough to precisely simulate the wall interference. Effect of the wall interference is discussed by comparing two kinds of computational results with and without the wind tunnel wall. Wall interference by the porous wall is characterized by the downwash and blockage. Porous wall is effective for decreasing the blockage, which causes the acceleration around the airfoil. However, high porosity of the porous wall causes the large downwash, and it changes incidence angle of the airfoil. The Mokry's correction method for wall interference is verified by applying the correction to CFD results. The Mokry's method shows high accuracy in subsonic and no stall conditions, which meet the requirement of small perturbation potential equation. The accuracy is also high even if the model is large relative to the wind tunnel size. However, about 10 drag count error is caused under the transonic flow. The accuracy is rapidly reduced around the stall condition, and over 100 count error is caused.

    Original languageEnglish
    Title of host publication30th AIAA Applied Aerodynamics Conference 2012
    Pages2280-2291
    Number of pages12
    Publication statusPublished - 2012
    Event30th AIAA Applied Aerodynamics Conference 2012 - New Orleans, LA
    Duration: 2012 Jun 252012 Jun 28

    Other

    Other30th AIAA Applied Aerodynamics Conference 2012
    CityNew Orleans, LA
    Period12/6/2512/6/28

    Fingerprint

    Wall flow
    Airfoils
    Wind tunnels
    Computational fluid dynamics
    Transonic flow
    Drag
    Porosity

    ASJC Scopus subject areas

    • Aerospace Engineering

    Cite this

    Nambu, T., Hashimoto, A., Murakami, K., & Satou, T. (2012). Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model. In 30th AIAA Applied Aerodynamics Conference 2012 (pp. 2280-2291)

    Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model. / Nambu, Taisuke; Hashimoto, Atsushi; Murakami, Keiichi; Satou, Tetsuya.

    30th AIAA Applied Aerodynamics Conference 2012. 2012. p. 2280-2291.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Nambu, T, Hashimoto, A, Murakami, K & Satou, T 2012, Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model. in 30th AIAA Applied Aerodynamics Conference 2012. pp. 2280-2291, 30th AIAA Applied Aerodynamics Conference 2012, New Orleans, LA, 12/6/25.
    Nambu T, Hashimoto A, Murakami K, Satou T. Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model. In 30th AIAA Applied Aerodynamics Conference 2012. 2012. p. 2280-2291
    Nambu, Taisuke ; Hashimoto, Atsushi ; Murakami, Keiichi ; Satou, Tetsuya. / Numerical analysisof wind tunnel wall interference on two-dimensional airfoil by new porous wall model. 30th AIAA Applied Aerodynamics Conference 2012. 2012. pp. 2280-2291
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