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Modelling falling viscoelastic liquid films at moderate Weissenberg number and Reynolds number

delete2026-07-09
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PRE
AI
W
Weiyang Jiang
李慧 (Hui Li)
Z
Zijing Ding *
DOI:10.1017/jfm.2026.11778delete
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Abstract

Abstract

En 中文
It is well-known that viscoelasticity plays a stabilising role in thin liquid film flow at moderate Reynolds numbers; which; however; cannot be resolved by current long-wave models. All these long-wave models can only predict the destabilising effect of viscoelasticity. This paper proposes a novel integral boundary layer model for a two-dimensional Oldroyd-B liquid film flow down a vertical plane. It consists of four dynamical variables – the film thickness errors against the full Navier–Stokes equations.
Keywords:
non-Newtonian flows
thin films

Journal

Journal of Fluid Mechanics cover
Journal of Fluid Mechanics
IF:
3.9
Papers:
2.0W
Citations:
9.4W

Organization

H
Harbin Institute of Technology
Scholars:
1.1W
Papers: 3.8K
Citations: 8.5W
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