Numerical Study of a Non-local Weakly Nonlinear Model for a Liquid Film Sheared by a Turbulent Gas
Numerical Study of a Non-local Weakly Nonlinear Model for a Liquid Film Sheared by a Turbulent Gas
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湍流气体剪切液膜非局部弱非线性模型的数值研究
DOI:
10.1016/j.piutam.2014.01.052
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Lin T
中科院分区:
文献类型:
--
作者:
Lin T
We investigate a weakly nonlinear equation that arises in the modelling of wave dynamics on a liquid film flowing down an inclined plane when a turbulent gas flows above it. The model is the Kuramoto-Sivashinsky equation with an additional non-local term multiplied by a parameter representing the relative importance of the turbulent gas. The non-local term has a dispersive effect, destabilising effect on long waves and stabilising or destabilising effect on short waves depending on whether the gas flows downwards or upwards. We investigate the influence of this term on the dynamics of the Kuramoto-Sivashinsky equation by extensive numerical experiments. When the gas parameter is sufficiently large, the solution evolves into a row of weakly interacting pulses.
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DOI:
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发表时间:
1979
期刊:
影响因子:
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作者:
V. V. Guguchkin;E. Demekhin;G. N. Kalugin;E. É. Markovich;V. G. Pikin
通讯作者:
V. G. Pikin
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1996
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作者:
Y. Sudo
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4.6
作者:
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通讯作者:
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1991
影响因子:
11.1
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通讯作者:
D. Papageorgiou
DOI:
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发表时间:
1978
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作者:
C. Thorsness;P. E. Morrisroe;T. J. Hanratty
通讯作者:
T. J. Hanratty