Self-drainage of viscous liquids in vertical and inclined pipes

Ali, Akin; Underwood, Alison; Lee, Y.-R.; Wilson, D.I.

doi:10.1016/j.fbp.2016.03.005

Cited by 15 publications

(7 citation statements)

References 16 publications

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“…The initial drainage rate is the same for the dry and oil-impregnated pouches at early time scales (0 s < t < 7 s). This is in agreement with previous works that observed that initial drainage was unaffected by the container shape or fluid properties 81 – 83 . This shows gravity is dominant over any surface effects in this brief period.…”

Section: Resultssupporting

confidence: 93%

“…Ali et al . has shown that at the end of the initial regime of drainage, the ratio of the mass remaining within the container to the initial mass remains fairly constant irrespective of container shape or fluid properties 83 . This mandates a constant value of m d / t for a time t corresponding to the end of this initial drainage regime, as the initial mass in the pouch was the same for both dry and infused pouches.…”

Section: Resultsmentioning

confidence: 99%

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Oil-Impregnated Hydrocarbon-Based Polymer Films

Mukherjee

Habibi

Rashed

et al. 2018

Sci Rep

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Porous surfaces impregnated with a liquid lubricant exhibit minimal contact angle hysteresis with immiscible test liquids, rendering them ideal as self-cleaning materials. Rather than roughening a solid substrate, an increasingly popular choice is to use an absorbent polymer as the “porous” material. However, to date the polymer choices have been limited to expensive silicone-based polymers or complex assemblies of polymer multilayers on functionalized surfaces. In this paper, we show that hydrocarbon-based polymer films such as polyethylene can be stably impregnated with chemically compatible vegetable oils, without requiring any surface treatment. These oil-impregnated hydrocarbon-based films exhibit minimal contact angle hysteresis for a wide variety of test products including water, ketchup, and yogurt. Our oil-impregnated films remain slippery even after several weeks of being submerged in ketchup, illustrating their extreme durability. We expect that the simple and cost-effective nature of our slippery hydrocarbon-based films will make them useful for industrial packaging applications.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Oil-Impregnated Hydrocarbon-Based Polymer Films

Mukherjee

Habibi

Rashed

et al. 2018

Sci Rep

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“…As honey and Marmite(TM) are strongly thermoviscous Ali et al. (2016), it is theoretically possible to employ different thermal profiles in order to enhance the rate of dripping (subject to keeping the temperature within a range that prevents spoilage).…”

Section: Introductionmentioning

confidence: 99%

“…Detailed modelling of drop formation was not considered, but instead the net rate of material flow was calculated experimentally, as for such applications knowing the total mass flux over time is of greater industrial relevance than is precise knowledge of drop shape and structure. As honey and Marmite(TM) are strongly thermoviscous Ali et al (2016), it is theoretically possible to employ different thermal profiles in order to enhance the rate of dripping (subject to keeping the temperature within a range that prevents spoilage).…”

Section: Introductionmentioning

confidence: 99%

“…For such foodstuffs, drainage rates are important to know for maintaining the efficiency of industrial processes. Recently, Ali et al (2016) carried out experiments with different sized tubes in order to determine rates of self-drainage of honey and two Marmite(TM) varieties. In their experimental configuration, additional material was added to the top of the cylinder, preventing air entrainment.…”

Section: Introductionmentioning

confidence: 99%

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