摘要
Gravity-driven demixing experiments of mechanically mixed binary-liquid mixture are performed at various temperatures. A steady state is observed in which the demixing rate is nearly constant. We find that the droplet size in the demixing zone grows only for a short time. During most of the demixing process, the size of these droplets is stabilized by the flow itself. A relationship between the characteristic demixing time r and the reduced temperature ε is found, ie. τ ~ ε–θ with θ = 0.54 ± 0.03. A phenomenological model in which the demixing process is considered as a flow through a porous medium is proposed to explain the experimental results.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 311-316 |
頁數 | 6 |
期刊 | EPL |
卷 | 19 |
發行號 | 4 |
DOIs | |
出版狀態 | 已出版 - 15 6月 1992 |