TY - JOUR
T1 - Dynamic mitigation mechanisms of rime icing with propagating surface acoustic waves
AU - Yang, Deyu
AU - Haworth, Luke
AU - Agrawal, Prashant
AU - Tao, Ran
AU - McHale, Glen
AU - Torun, Hamdi
AU - Martin, James
AU - Luo, Jingting
AU - Hou, Xianghui
AU - Fu, Yongqing (Richard)
N1 - Funding informtion: This work was supported by the Engineering and Physical Sciences Research Council of UK (EPSRC EP/P018998/1), UK Fluids Network Special Interest Group of Acoustofluidics (EP/N032861/1), and EPSRC NetworkPlus in Digitalised Surface Manufacturing (EP/S036180/1).
PY - 2022/9/20
Y1 - 2022/9/20
N2 - Ice accretion on economically valuable and strategically important surfaces poses significant challenges. Current anti-/de-icing techniques often have critical issues regarding their efficiency, convenience, long-term stability, or sustainability. As an emerging ice mitigation strategy, the thin-film surface acoustic wave (SAW) has great potentials due to its high energy efficiency and effective integration on structural surfaces. However, anti-/de-icing processes activated by SAWs involve complex interfacial evolution and phase changes, and it is crucial to understand the nature of dynamic solid-liquid-vapor phase changes and ice nucleation, growth, and melting events under SAW agitation. In this study, we systematically investigated the accretion and removal of porous rime ice from structural surfaces activated by SAWs. We found that icing and de-icing processes are strongly linked with the dynamical interfacial phase and structure changes of rime ice under SAW activation and the acousto-thermally induced localized heating that facilitate the melting of ice crystals. Subsequently, interactions of SAWs with the formed thin water layer at the ice/structure interface result in significant streaming effects that lead to further damage and melting of ice, liquid pumping, jetting, or nebulization.
AB - Ice accretion on economically valuable and strategically important surfaces poses significant challenges. Current anti-/de-icing techniques often have critical issues regarding their efficiency, convenience, long-term stability, or sustainability. As an emerging ice mitigation strategy, the thin-film surface acoustic wave (SAW) has great potentials due to its high energy efficiency and effective integration on structural surfaces. However, anti-/de-icing processes activated by SAWs involve complex interfacial evolution and phase changes, and it is crucial to understand the nature of dynamic solid-liquid-vapor phase changes and ice nucleation, growth, and melting events under SAW agitation. In this study, we systematically investigated the accretion and removal of porous rime ice from structural surfaces activated by SAWs. We found that icing and de-icing processes are strongly linked with the dynamical interfacial phase and structure changes of rime ice under SAW activation and the acousto-thermally induced localized heating that facilitate the melting of ice crystals. Subsequently, interactions of SAWs with the formed thin water layer at the ice/structure interface result in significant streaming effects that lead to further damage and melting of ice, liquid pumping, jetting, or nebulization.
UR - http://www.scopus.com/inward/record.url?scp=85137941595&partnerID=8YFLogxK
U2 - 10.1021/acs.langmuir.2c01509
DO - 10.1021/acs.langmuir.2c01509
M3 - Article
C2 - 36070605
SN - 0743-7463
VL - 38
SP - 11314
EP - 11323
JO - Langmuir
JF - Langmuir
IS - 37
ER -