Steady solutions of inertial film flow along strongly undulated substrates
Steady solutions of inertial film flow along strongly undulated substrates
复制标题
沿着强烈起伏的基底的惯性膜流的稳定解
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
V. Bontozoglou
中科院分区：
文献类型：
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作者：
P. Nguyen;V. Bontozoglou
采用二维Navier-Stokes方程的有限元模拟方法，研究了液膜沿沿着正弦陡波壁面的定常流动。壁和毛细管重力波之间的共振逆着流动行进，定义了临界Re，并将流动分成亚临界和超临界状态。陡峭的波纹触发广泛的流动分离，在这两个制度。然而，分离特性-最值得注意的是非常薄和非常厚的膜的限制行为-变化，因为在这两个制度中的毛细管力的不同意义。对于非常陡峭的波纹，两个相交的解决方案分支共存。目前的计算预测相比，有利的独立的实验观察。
Steady flow of a liquid film along sinusoidal, steeply corrugated walls is investigated by finite-element simulation of the 2D Navier-Stokes equations. Resonance between the wall and capillary-gravity waves travelling against the flow defines a critical Re and separates the flow into a subcritical and a supercritical regime. Steep corrugations trigger extensive flow separation in both regimes. However, the separation characteristics—most notably the limiting behavior for very thin and very thick films—vary because of the different significance of capillary forces in the two regimes. For very steep corrugations, two intersecting solution branches co-exist. The present computational predictions are compared favorably with independent experimental observations.
影响因子：
4.6
作者：
M. Scholle;A. Haas;N. Aksel;M. Wilson;H. Thompson;P. Gaskell
通讯作者：
M. Scholle;A. Haas;N. Aksel;M. Wilson;H. Thompson;P. Gaskell
影响因子：
3.7
作者：
D. Tseluiko;M. Blyth;D. Papageorgiou;J. Vanden-Broeck
通讯作者：
D. Tseluiko;M. Blyth;D. Papageorgiou;J. Vanden-Broeck