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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c02727
|2 doi
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|a pubmed24n1168.xml
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|a DE-627
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|a eng
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| 100 |
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|a Zhang, Qindan
|e verfasserin
|4 aut
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|a Coalescence of a Ferrofluid Drop at Its Bulk Surface with or without a Magnetic Field
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.01.2023
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|a Date Revised 11.01.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The coalescence of a ferrofluid drop at its bulk surface, with or without a magnetic field, was investigated experimentally by a high-speed camera. Shape deformations of both the pendant ferrofluid drop and the bulk surface in the axial direction were observed during the approaching process even in the absence of a magnetic field. The angle of the upper pendant peak at the first contact decreases with the magnetic flux density, while the lower ferrofluid peak displays an opposite trend. The coalescing width of the ferrofluid drop follows a power-law relationship. The exponent of 0.64 under medium and high magnetic fields as well as the case without magnetic field confirms the inertial regime of drop coalescence. Under the low magnetic field, the significant exponent increasing from 0.59 to 3.02 at about 4 ms is in coincidence with the sudden change to a smooth coalescing section according to the visualized images. A high-speed microparticle image velocimetry (micro-PIV) technique was employed with a transparent model fluid to reveal the flow fields during the drop coalescence instead of opaque ferrofluids
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|a Journal Article
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1 |
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|a Poncin, Souhila
|e verfasserin
|4 aut
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| 700 |
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|a Blanchard, Christian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Youguang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Huai Z
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 1 vom: 10. Jan., Seite 461-468
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:39
|g year:2023
|g number:1
|g day:10
|g month:01
|g pages:461-468
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|u http://dx.doi.org/10.1021/acs.langmuir.2c02727
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