Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils
The paper presents the results of studying the effects of droplet diameters on the NACA0012 airfoil ice accretion, which have been obtained in the 3D numerical simulation of icing. To simulate the motion of water droplets as a multiphase medium, the Eulerian approach is used, which assumes that wate...
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MDPI AG
2023-10-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/10/906 |
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| author | Andrey Kozelkov Nikolay Galanov Ilya Semenov Roman Zhuchkov Dmitry Strelets |
| author_facet | Andrey Kozelkov Nikolay Galanov Ilya Semenov Roman Zhuchkov Dmitry Strelets |
| author_sort | Andrey Kozelkov |
| collection | DOAJ |
| description | The paper presents the results of studying the effects of droplet diameters on the NACA0012 airfoil ice accretion, which have been obtained in the 3D numerical simulation of icing. To simulate the motion of water droplets as a multiphase medium, the Eulerian approach is used, which assumes that water droplets have spherical shapes, do not undergo deformation and breakup, do not interact with each other, and that coalescence/fragmentation of droplets does not take place. Both monodisperse (of the same size) and polydisperse (of various sizes) droplets are considered; they are represented by the spectral Langmuir distributions. These spectral distributions take into account the polydisperse nature of droplets and provide a higher efficiency in predicting ice shapes. The obtained ice shapes on an airfoil are compared with the available experimental and calculated data. It should be noted according to the simulation results that the use of the standard size of droplet diameter equal to 20 μm does not allow for obtaining correct shapes of ice on the leading edge of the wing profile not at all temperature regimes. For temperatures from −20 °C to −10 °C, there is a noticeable difference compared to the experimental data. At the same time, for this temperature range, the use of the Langmuir spectral distribution of droplet diameters relative to 15 μm provides a better agreement of the formed ice forms with the experiment. |
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| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T21:31:54Z |
| publishDate | 2023-10-01 |
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| spelling | doaj.art-fdbaa0437acd4bea8ce8f18dddf3d0e72023-11-19T15:17:46ZengMDPI AGAerospace2226-43102023-10-01101090610.3390/aerospace10100906Computational Investigation of the Water Droplet Effects on Shapes of Ice on AirfoilsAndrey Kozelkov0Nikolay Galanov1Ilya Semenov2Roman Zhuchkov3Dmitry Strelets4Russian Federal Nuclear Center, All-Russian Research Institute of Experimental Physics, Nizhny Novgorod Region, Sarov 607188, RussiaRussian Federal Nuclear Center, All-Russian Research Institute of Experimental Physics, Nizhny Novgorod Region, Sarov 607188, RussiaDepartment of Computational Mathematics, Federal State Institution “Scientific Research Institute for System Analysis of the Russian Academy of Sciences”, Moscow 117218, RussiaRussian Federal Nuclear Center, All-Russian Research Institute of Experimental Physics, Nizhny Novgorod Region, Sarov 607188, RussiaAircraft Design and Certification Department, Moscow Aviation Institute, Volokolamskoe Shosse, 4, Moscow 125993, RussiaThe paper presents the results of studying the effects of droplet diameters on the NACA0012 airfoil ice accretion, which have been obtained in the 3D numerical simulation of icing. To simulate the motion of water droplets as a multiphase medium, the Eulerian approach is used, which assumes that water droplets have spherical shapes, do not undergo deformation and breakup, do not interact with each other, and that coalescence/fragmentation of droplets does not take place. Both monodisperse (of the same size) and polydisperse (of various sizes) droplets are considered; they are represented by the spectral Langmuir distributions. These spectral distributions take into account the polydisperse nature of droplets and provide a higher efficiency in predicting ice shapes. The obtained ice shapes on an airfoil are compared with the available experimental and calculated data. It should be noted according to the simulation results that the use of the standard size of droplet diameter equal to 20 μm does not allow for obtaining correct shapes of ice on the leading edge of the wing profile not at all temperature regimes. For temperatures from −20 °C to −10 °C, there is a noticeable difference compared to the experimental data. At the same time, for this temperature range, the use of the Langmuir spectral distribution of droplet diameters relative to 15 μm provides a better agreement of the formed ice forms with the experiment.https://www.mdpi.com/2226-4310/10/10/906ice accretionairfoilmultiphase mediummonodisperse dropletsdiameterLangmuir distribution |
| spellingShingle | Andrey Kozelkov Nikolay Galanov Ilya Semenov Roman Zhuchkov Dmitry Strelets Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils Aerospace ice accretion airfoil multiphase medium monodisperse droplets diameter Langmuir distribution |
| title | Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils |
| title_full | Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils |
| title_fullStr | Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils |
| title_full_unstemmed | Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils |
| title_short | Computational Investigation of the Water Droplet Effects on Shapes of Ice on Airfoils |
| title_sort | computational investigation of the water droplet effects on shapes of ice on airfoils |
| topic | ice accretion airfoil multiphase medium monodisperse droplets diameter Langmuir distribution |
| url | https://www.mdpi.com/2226-4310/10/10/906 |
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