Comparative Study of Using Superhydrophobic and Icephobic Surface Coatings for Aircraft Icing Mitigation
Comparative Study of Using Superhydrophobic and Icephobic Surface Coatings for Aircraft Icing Mitigation
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DOI：
10.2514/1.j063579
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发表时间：
2024-01
期刊：
影响因子：
2.5
通讯作者：
Haiyang Hu;L. Tian;Chukwudum Eluchie;Harsha Sista;Hui Hu
中科院分区：
文献类型：
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作者：
Haiyang Hu;L. Tian;Chukwudum Eluchie;Harsha Sista;Hui Hu
我们报告了一项比较研究，以评估不同的疏水性和icephobibicities的混合防/除冰系统，集成表面加热与水/冰疏涂层飞机结冰缓解的性能的表面涂层的影响。在翼型/机翼模型前缘采用柔性电热膜加热器对翼型前缘表面进行加热以防止翼型前缘附近积冰的同时，在翼型模型的展向三个不同位置分别涂敷了三种不同的涂层，其中疏冰涂层的疏冰性较好，但疏水性较弱;具有突出的拒水性但具有中等疏冰性的超疏水表面（SHS）涂层;和具有差的疏水性和差的疏冰性的常用亲水涂层。表面润湿性被认为在影响混合防/除冰系统的性能方面起着比疏冰性更重要的作用。与强力加热亲水翼型表面的方法相比，发现具有SHS涂层的混合方法能够在保持整个翼型表面无冰方面实现约90%的能量节省;具有疏冰涂层的混合系统的相应能量节省仅为约10%。
We report a comparative study to evaluate the effects of surface coatings with different hydrophobicities and icephobicities on the performance of a hybrid anti-/de-icing system that integrates surface heating with hydro-/ice-phobic coating for aircraft icing mitigation. While a flexible electric film heater wrapped around the leading edge of an airfoil/wing model was used to heat the airfoil frontal surface to prevent ice accretion near the airfoil leading edge, three different kinds of coatings were applied to coat the airfoil model at three distinct spanwise locations, which included an icephobic coating with an outstanding icephobicity but a weak hydrophobicity; a superhydrophobic surface (SHS) coating with outstanding water repellency but a moderate icephobicity; and a commonly used hydrophilic coating with poor hydrophobicity and poor icephobicity. Surface wettability was found to play a more important role than icephobicity in affecting the performance of the hybrid anti-/de-icing systems. In comparison to the approach of forceful heating the hydrophilic airfoil surface, the hybrid approach with the SHS coating was found to be able to achieve about 90% energy savings in keeping the entire airfoil surface ice-free; the corresponding energy savings for the hybrid system with the icephobic coating was only about 10%.