Thin liquid film formation on hemispherical and conical substrate

Thin liquid film formation on hemispherical and conical substrate
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在半球形和圆锥形基底上形成液体薄膜

DOI:
10.1002/pamm.201900111
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发表时间:
2019
期刊:
PAMM
影响因子:
--
通讯作者:
Philip H. Gaskell
Philip H. Gaskell
中科院分区:
--
文献类型:
--
作者:
Markus Scholle;Florian Marner;Philip H. Gaskell

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在弯曲的刚性衬底上沉积和涂覆薄膜,包括液体置换空气,在技术部门有许多应用,但面临两大挑战:(1)控制局部薄膜厚度;(2)确保涂层保持稳定。本文研究了连续输送重力驱动的薄液体层对半球形和圆锥形三维曲面几何形状的全覆盖。所采用的建模方法利用了Navier-Stokes方程的第一积分形式[1,2],从而在定常流动的情况下得到了变分形式,并在自由面上有利地重新表述了动态边界条件[3]。基于长波近似的渐近分析可以得到局部膜厚的解析解。
The deposition and coating of thin films onto curved rigid substrate, involving displacement of air by a liquid, has numerous applications within the technology sectors but faces two major challenges: (i) control of the local film thickness; (ii) ensuring that the coating remains stable. The work reported here investigates the full coverage of three‐dimensional curved geometries, of hemispherical and conical shape, by a continuously fed, gravity‐driven, thin liquid layer. The modelling approach adopted utilises a first integral formulation [1,2] of the Navier‐Stokes equations leading to a variational formulation in the case of steady flow and an advantageous re‐formulation of the dynamic boundary condition at the free surface [3]. Asymptotic analysis, underpinned by the long‐wave approximation, enables analytic solutions for the local film thickness to be obtained.
DOI: 10.3390/fluids4020082
发表时间: 2019
期刊: Fluids
影响因子: 1.9
作者:
Markus Scholle;Philip H. Gaskell;Florian Marner
通讯作者: Florian Marner
非定常不可压缩纳维-斯托克斯方程、规范准则和应用的精确积分
DOI: 10.1063/1.5031119
发表时间: 2018
影响因子: 1.3
作者:
M. Scholle;P. H. Gaskell;F. Marner
通讯作者: F. Marner
纳维-斯托克斯方程的一阶积分及其应用
DOI: 10.1098/rspa.2010.0157
发表时间: 2011
期刊: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子: --
作者:
M. Scholle;A. Haas;P. Gaskell
通讯作者: P. Gaskell