Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities
The accumulation of ice on the aero-engine inlet compromises engine safety. Traditional hot air anti-icing systems, which utilize bleed air, require substantial energy, decreasing engine performance and increasing emissions. Superhydrophobic materials have shown potential in reducing energy consumpt...
| Asıl Yazarlar: | , , , , |
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| Materyal Türü: | Makale |
| Dil: | English |
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MDPI AG
2024-07-01
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| Seri Bilgileri: | Aerospace |
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| Online Erişim: | https://www.mdpi.com/2226-4310/11/7/591 |
| _version_ | 1827179313773936640 |
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| author | Kuiyuan Ma Guiping Lin Haichuan Jin Xiaobin Shen Xueqin Bu |
| author_facet | Kuiyuan Ma Guiping Lin Haichuan Jin Xiaobin Shen Xueqin Bu |
| author_sort | Kuiyuan Ma |
| collection | DOAJ |
| description | The accumulation of ice on the aero-engine inlet compromises engine safety. Traditional hot air anti-icing systems, which utilize bleed air, require substantial energy, decreasing engine performance and increasing emissions. Superhydrophobic materials have shown potential in reducing energy consumption when combined with these systems. Research indicates that superhydrophobic surfaces on stationary components significantly reduce anti-icing energy consumption by altering runback water flow behavior. However, for rotating aero-engine components, the effectiveness of superhydrophobic surfaces and the influence of surface wettability on runback water flow remain unclear due to centrifugal and Coriolis forces. This study investigates the runback water flow behavior on aero-engine rotating spinner surfaces with varying wettabilities in a straight-flow spray wind tunnel. The results demonstrated that centrifugal force reduces the amount of runback water on the rotating spinner compared to the stationary surface, forming rivulet flows deflected opposite to the direction of rotation. Furthermore, wettability significantly affects the flow characteristics of runback water on rotating surfaces. As the contact angle increases, the liquid water on the rotating spinner transitions from continuous film flow to rivulet and bead-like flows. Notably, the superhydrophobic surface prevents water adhesion, indicating its potential for anti-icing on rotating components. In addition, the interaction between rotational speed and surface wettability enhances the effects, with both increased rotational speed and larger contact angles contributing to higher liquid water flow velocities, promoting the rapid formation and detachment of rivulet and bead-like flows. |
| first_indexed | 2025-03-21T05:13:02Z |
| format | Article |
| id | doaj.art-d209e4b5a65c4883b7cf901b74d7a95e |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2025-03-21T05:13:02Z |
| publishDate | 2024-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-d209e4b5a65c4883b7cf901b74d7a95e2024-07-26T12:29:07ZengMDPI AGAerospace2226-43102024-07-0111759110.3390/aerospace11070591Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different WettabilitiesKuiyuan Ma0Guiping Lin1Haichuan Jin2Xiaobin Shen3Xueqin Bu4School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaHangzhou International Innovation Institute, Beihang University, Hangzhou 311115, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaThe accumulation of ice on the aero-engine inlet compromises engine safety. Traditional hot air anti-icing systems, which utilize bleed air, require substantial energy, decreasing engine performance and increasing emissions. Superhydrophobic materials have shown potential in reducing energy consumption when combined with these systems. Research indicates that superhydrophobic surfaces on stationary components significantly reduce anti-icing energy consumption by altering runback water flow behavior. However, for rotating aero-engine components, the effectiveness of superhydrophobic surfaces and the influence of surface wettability on runback water flow remain unclear due to centrifugal and Coriolis forces. This study investigates the runback water flow behavior on aero-engine rotating spinner surfaces with varying wettabilities in a straight-flow spray wind tunnel. The results demonstrated that centrifugal force reduces the amount of runback water on the rotating spinner compared to the stationary surface, forming rivulet flows deflected opposite to the direction of rotation. Furthermore, wettability significantly affects the flow characteristics of runback water on rotating surfaces. As the contact angle increases, the liquid water on the rotating spinner transitions from continuous film flow to rivulet and bead-like flows. Notably, the superhydrophobic surface prevents water adhesion, indicating its potential for anti-icing on rotating components. In addition, the interaction between rotational speed and surface wettability enhances the effects, with both increased rotational speed and larger contact angles contributing to higher liquid water flow velocities, promoting the rapid formation and detachment of rivulet and bead-like flows.https://www.mdpi.com/2226-4310/11/7/591aero-engine icinganti-icingsurface wettabilitywater flowsuperhydrophobic |
| spellingShingle | Kuiyuan Ma Guiping Lin Haichuan Jin Xiaobin Shen Xueqin Bu Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities Aerospace aero-engine icing anti-icing surface wettability water flow superhydrophobic |
| title | Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities |
| title_full | Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities |
| title_fullStr | Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities |
| title_full_unstemmed | Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities |
| title_short | Experimental Investigation of Runback Water Flow Behavior on Aero-Engine Rotating Spinners with Different Wettabilities |
| title_sort | experimental investigation of runback water flow behavior on aero engine rotating spinners with different wettabilities |
| topic | aero-engine icing anti-icing surface wettability water flow superhydrophobic |
| url | https://www.mdpi.com/2226-4310/11/7/591 |
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