液滴撞击疏水/超疏水表面防结冰技术研究进展及未来展望

Research progress and future prospects of anti-/de-icing technology for droplets impact on hydrophobic/superhydrophobic surfaces

抑制撞击液滴的结冰在实际工程应用中具有重要意义。寻求经济、高效的防/除冰方法是结冰领域的研究热点。针对撞击液滴的结冰问题,首先从动力学特性、结冰特性以及撞击液滴结冰的理论研究等方面进行综述,并对目前关于撞击液滴结冰中存在的一些问题进行分析。然后,基于撞击液滴的反弹特性可从源头上抑制结冰这种思路,提出降低接触时间、增加成核再辉时间的新方法。这些方法的提出有助于从源头上解决撞击液滴的结冰问题,将使“利用撞击液滴的反弹特性抑制结冰”的应用范围极大扩展,积极推动防结冰技术的发展。最后,对利用液滴的反弹特性进行抑制结冰的研究进行展望。

The anti-/de-icing of impact droplets is of great significance in practical engineering applications.It is a research hotspot in the field of icing to seek an economical and efficient anti-/de-icing method.In view of the icing problem of impact droplets,the author firstly reviews the dynamic characteristics,icing characteristics and theoretical research of impact droplets icing.On this basis,a comprehensive analysis of the current commonly used anti-/de-icing methods and existing problems was carried out.Then,based on the new idea that the rebounding characteristics of impact droplets can suppress icing from the source,a new method to reduce contact time and increase nucleation/rebright time is proposed.The proposal of these methods will help to solve the problem of icing of impact droplets in essence,and will greatly expand the application scope of“using the rebound characteristics of impact droplets to suppress icing”,and actively promote the development of anti-icing technology.Finally,the research on the use of the rebound characteristics of droplets to suppress icing is expected.