A numerical study of surface tension auto-oscillations. Effect of surfactant properties.
A numerical study of surface tension auto-oscillations. Effect of surfactant properties.
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表面张力自振荡的数值研究。
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
D. Vollhardt
中科院分区：
文献类型：
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作者：
N. Kovalchuk;D. Vollhardt
针对半无限模型系统，对自由水面下具有表面活性剂液滴的系统行为的主要表面活性剂性质（例如溶解度、表面活性和扩散系数）的影响进行了数值研究。该系统表现出不稳定性，表现为表面张力的自动振荡。自振荡开始前的诱导时间以及振荡的幅度和周期取决于表面活性剂的性质。上述参数的增加都会导致诱导时间的缩短，但其影响程度不同。振荡的幅度主要取决于表面活性剂的溶解度。
The effect of the main surfactant properties such as, solubility, surface activity, and diffusion coefficient on the behavior of a system with a surfactant droplet under the free water surface is studied numerically for a semi-infinite model system. The system reveals instability which is manifested by auto-oscillation of the surface tension. The induction time before the beginning of auto-oscillations and amplitude and period of the oscillation are dependent on the surfactant properties. Increase of the above parameters leads to a decrease of the induction time but the degree of their effect is different. The amplitude of the oscillations is mainly dependent on the surfactant solubility.