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Falling viscoelastic liquid films on a slippery substrate

文献类型:期刊论文

作者Song, Zhiwei3; Ding ZJ(丁子敬)1,2,3
刊名PHYSICAL REVIEW E
出版日期2025-08-25
卷号112期号:2页码:13
ISSN号2470-0045
DOI10.1103/vv3p-cvk2
通讯作者Ding, Zijing(z.ding@hit.edu.cn)
英文摘要This study develops a weighted-residual model for Oldroyd-B films on slippery substrates at moderate Reynolds number and large slippery length. Linear stability analysis reveals that wall slip promotes perturbation growth rates, increases cut-off wave numbers, and accelerates long-wave propagation speed, demonstrating a destabilizing effect. Two distinct families of traveling waves are sought, which demonstrate that varying the slippery length can alter the bifurcation type of traveling wave families. Particularly, large slippery length can cause the transition of drag-gravity regime into the drag-inertia regime. In the drag-gravity regime, slippery effect promotes the wave speed and height. However, in the drag-inertia regime, slippery effect can suppress the wave height even though the wave propagates faster. Interestingly, plateau-type waves are found in the Oldroyd-B film flow at large slippery length, which has not been reported previously.
分类号二类/Q1
WOS关键词STABILITY ; WAVES ; FLOWS
资助项目National Natural Science Foundation of China[12102109]
WOS研究方向Physics
语种英语
WOS记录号WOS:001564142600003
资助机构National Natural Science Foundation of China
其他责任者丁子敬
源URL[http://dspace.imech.ac.cn/handle/311007/103674]  
专题力学研究所_国家微重力实验室
作者单位1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
2.Harbin Inst Technol, Int Res Ctr Intelligent Fluid Mech, Harbin 150001, Peoples R China;
3.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China;
推荐引用方式
GB/T 7714
Song, Zhiwei,Ding ZJ. Falling viscoelastic liquid films on a slippery substrate[J]. PHYSICAL REVIEW E,2025,112(2):13.
APA Song, Zhiwei,&丁子敬.(2025).Falling viscoelastic liquid films on a slippery substrate.PHYSICAL REVIEW E,112(2),13.
MLA Song, Zhiwei,et al."Falling viscoelastic liquid films on a slippery substrate".PHYSICAL REVIEW E 112.2(2025):13.

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来源:力学研究所

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