It is well known that SLD (Supercooled Large Droplets) icing is very dangerous because it is more unpredictable than general icing caused by smaller droplets. In SLD conditions, a droplet deforms largely. Vargas et al. (2011) performed the experiments about the droplet deformation and they confirmed that the droplet deforms to an oblate spheroid, as the droplet approaches the leading edge of an airfoil. Therefore, the assumption that a droplet behaves as a sphere might be no longer valid. There are many models to predict the droplet deformation in which the deformation is described with the change of drag coefficient. For example, Hospers (2013) summarized the linear relations between the Reynolds number and the drag coefficient. Wiegand (1987) developed a model which uses a quasi-steady normal mode analysis of droplet deformation. However, the effect of the droplet deformation models on SLD icing simulations has not been completely clarified yet. Therefore, in the present study, the authors investigated the effect of the droplet deformation models on SLD icing simulations. The authors used a NACA0012 airfoil, and compared the numerical results with the NASA experiments. It was confirmed that the ice shape, the droplet impinging limit and the icing limit are influenced by the model of the drag coefficient.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Comparative Investigation on Effect of Droplet Deformation Models on SLD Icing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Yamamoto, Makoto (Autor:in) / Shimura, Miki (Autor:in)

    Kongress:

    SAE 2015 International Conference on Icing of Aircraft, Engines, and Structures ; 2015



    Erscheinungsdatum :

    2015-06-15




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Comparative Investigation on Effect of Droplet Deformation Models on SLD Icing

    Shimura, Miki / Yamamoto, Makoto | British Library Conference Proceedings | 2015


    Experimental and Numerical Investigation of Icing Process of a Liquid Droplet

    Lian, Yongsheng / Liao, Dong / Qiu, Huihe et al. | AIAA | 2017


    Droplet Dispersion in the Icing Research Tunnel

    Lee, Albert / Loth, Eric | AIAA | 2010



    Conservative hyperbolic droplet solver for aircraft icing

    Blanchet, Maxime / Bourgault-Cote, Simon / Laurendeau, Eric | AIAA | 2022