Some observations on liquid flow through filters
Autor: | M. Roo, M. G. Nicholas |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Journal of Materials Science. 25:3501-3507 |
ISSN: | 1573-4803 0022-2461 |
DOI: | 10.1007/bf00575377 |
Popis: | Experiments were conducted to assess the relevance to filtration of the Poiseuille analysis of liquid flow in straight cylindrical pipes. Trials using glass filters through which water, a citric acid solution and mercury flowed showed that the analysis was qualitatively relevant. As predicted, the flow rates were a simple function of the pressure difference across the filter and were proportional to the density/viscosity ratio of the liquids. However, quantitative predictions were inaccurate because of uncertainty about filter pore dimensions and the lack of flow through narrow pores when the liquid did not wet the filter material. Flow of a suspension was further complicated by the build up on the entry faces of filters of layers of particulates which acted as secondary filters. |
Databáze: | OpenAIRE |
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