Zhou Zhihong, Yi Xian, Gui Yewei, Qu Jianmin. Icing scaling law with the dynamic effects of water droplets[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(2): 20-25. DOI: 10.11729/syltlx20160013
Citation: Zhou Zhihong, Yi Xian, Gui Yewei, Qu Jianmin. Icing scaling law with the dynamic effects of water droplets[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(2): 20-25. DOI: 10.11729/syltlx20160013

Icing scaling law with the dynamic effects of water droplets

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  • Constraints of the size and simulation ability are often encountered in the icing wind tunnel test.We established an icing scaling law with the dynamic effects of water droplets to solve the problem.It is based on the icing scaling laws with small size droplets.Similar parame-ters of ice accretion on aircraft surface were refined in this paper based on the similarity of a num-ber of conditions such as the flow field,droplet motion,impact properties and thermodynamic properties of ice accretion.Two constraint conditions are proposed to ensure the similarity of dy-namics effect of droplets.The first condition is the equal of Weber number,which ensures the similarity of droplet deformation.The second constraint is the equal of impact parameter,which ensures the similarity of droplet broken.The numerical method is used for the evaluation of the icing scaling law with the dynamic effects of water droplets.The results show that ice shapes on a full scale model and its sub-scaled model are similar,which illustrates that the law is effective and can be used in icing wind tunnel test.
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