On the breakup of fluid rivulets

Diez, Javier A.; González, Antonio Bueno; Kondic, Lou

doi:10.1063/1.3211248

Cited by 69 publications

(111 citation statements)

References 35 publications

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“…Davis 70 first evaluated the stability of an infinite liquid rivulet, and showed that the printed lines can break into separate drops under various surface conditions. Similar approach was adopted by Kondic et al 71 to evaluate the stability of liquid rivulets with finite length. The hydrodynamic instability of an inkjet-printed rivulet was further examined experimentally by Schiaffino and Sonin.…”

Section: Printing Procedures Issuesmentioning

confidence: 99%

Inkjet Printed Conductive Tracks for Printed Electronics

Chen

Chiu

Wang

et al. 2015

ECS J. Solid State Sci. Technol.

102

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This review briefly summarizes the recent development in fabrication of conductive tracks with inkjet printing technology. Special emphasis will be placed on material selection and printing procedures. Troubleshooting guidelines for frequent problems in inkjet printing methods, such as material selection, ink formulation, ink-substrate interaction, and post-treatment of inks, are elucidated in this article to fabricate conductive tracks or electrodes with well-defined patterns. Related applications and unsolved challenges are also briefly reviewed in this article.

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Section: Printing Procedures Issuesmentioning

confidence: 99%

Inkjet Printed Conductive Tracks for Printed Electronics

Chen

Chiu

Wang

et al. 2015

ECS J. Solid State Sci. Technol.

102

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“…Figures 12 and 13 illustrate that the rivulet is again thick at the top of the cylinder with both β and h m becoming infinite according to (31) in the limit α → 0 + , and they are again finite in the middle of the cylinder, satisfying (34) in the limit α → π/2. However, in this case the rivulet becomes thick with zero contact angle and finite semi-width π near the bottom of the cylinder according to (17) in the limit α → π − .…”

Section: A Wide Rivulet Withā > πmentioning

confidence: 99%

A rivulet of a power-law fluid with constant width draining down a slowly varying substrate

Mukahal¹,

Wilson²,

Duffy³

2015

Journal of Non-Newtonian Fluid Mechanics

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The flow of a slowly varying rivulet of a power-law fluid with prescribed constant width (i.e. with pinned contact lines) but slowly varying contact angle down a slowly varying substrate, specifically the flow in the azimuthal direction around the outside of a large horizontal circular cylinder, is described. The solution for a rivulet of a perfectly wetting fluid (which can never have constant width) is obtained, and it is shown that, despite having the same local behaviour, the global behaviour of a rivulet of a non-perfectly wetting fluid is qualitatively very different from that of a rivulet with prescribed constant contact angle but slowly varying width. Specifically, it is described how the contact lines of a sufficiently narrow rivulet can remain pinned as it drains all the way from the top to the bottom of the cylinder, but how the contact lines of a wider rivulet de-pin at a critical position on the lower half of the cylinder, and how thereafter it drains to the bottom of the cylinder with zero contact angle and slowly varying width. How the shape of the rivulet and the velocity within it depend on the power-law index N is described in detail. In particular, it is shown that whereas neither the shape of the rivulet nor the velocity within it vary monotonically with N , its mass always decreases monotonically with N . Despite the limitations of the power-law model, the present results provide rare analytical insight into non-Newtonian rivulet flow, and, in particular, are a useful benchmark for the study of rivulet flow of more realistic non-Newtonian fluids.

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“…LW approach is known to capture many morphological aspects of instability development. 27 In particular, a useful insight is reached by considering the linear stability analysis (LSA), which is appropriate for the initial stages of instability development. This approach predicts a fastest growing surface mode (λ m ) where the growth rate spectrum for all possible modes (referred to as the dispersion curve) exhibits a broad distribution.…”

mentioning

confidence: 99%

Hierarchical Nanoparticle Ensembles Synthesized by Liquid Phase Directed Self-Assembly

Fowlkes

Roberts

et al. 2014

Nano Lett.

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A liquid metal filament supported on a dielectric substrate was directed to fragment into an ordered, mesoscale particle ensemble. Imposing an undulated surface perturbation on the filament forced the development of a single unstable mode from the otherwise disperse, multimodal Rayleigh− Plateau instability. The imposed mode paved the way for a hierarchical spatial fragmentation of the filament into particles, previously seen only at much larger scales. Ultimately, nanoparticle radius control is demonstrated using a micrometer scale switch.

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On the breakup of fluid rivulets

Cited by 69 publications

References 35 publications

Inkjet Printed Conductive Tracks for Printed Electronics

Inkjet Printed Conductive Tracks for Printed Electronics

A rivulet of a power-law fluid with constant width draining down a slowly varying substrate

Hierarchical Nanoparticle Ensembles Synthesized by Liquid Phase Directed Self-Assembly

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