×

Propagation of a viscous thin film over an elastic membrane. (English) Zbl 1382.76023

Summary: We study the buoyancy-driven spreading of a thin viscous film over a thin elastic membrane. Neglecting the effects of membrane bending and the membrane weight, we study the case of constant fluid injection and obtain a system of coupled partial differential equations to describe the shape of the air-liquid interface, and the deformation and radial tension of the stretched membrane. We obtain self-similar solutions to describe the dynamics. In particular, in the early-time period, the dynamics is dominated by buoyancy-driven spreading of the liquid film, and membrane stretching is a response to the buoyancy-controlled distribution of liquid weight; the location of the liquid front obeys the power-law form \(r_f(t)\propto t^{1/2}\). However, in the late-time period, the system is quasi-steady, the air-liquid interface is flat, and membrane stretching, due to the liquid weight, causes the spreading of the liquid front; the location of the front obeys a different power-law form \(r_{f}(t)\propto t^{1/4}\) before the edge effects of the membrane become significant. In addition, we report laboratory experiments for constant fluid injection using different viscous liquids and thin elastic membranes. Very good agreement is obtained between the theoretical predictions and experimental observations.

MSC:

76A20 Thin fluid films
PDFBibTeX XMLCite
Full Text: DOI Link

References:

[1] DOI: 10.1142/p146 · doi:10.1142/p146
[2] DOI: 10.1016/0034-5687(70)90015-0 · doi:10.1016/0034-5687(70)90015-0
[3] DOI: 10.1103/PhysRevLett.111.154501 · doi:10.1103/PhysRevLett.111.154501
[4] DOI: 10.1017/S0022112082001785 · doi:10.1017/S0022112082001785
[5] Landau, Theory of Elasticity (1959)
[6] DOI: 10.1098/rspa.2008.0095 · Zbl 1152.74355 · doi:10.1098/rspa.2008.0095
[7] DOI: 10.1016/0013-7944(91)90144-P · doi:10.1016/0013-7944(91)90144-P
[8] Bunger, J. Geophys. Res. 116 (2011)
[9] DOI: 10.1017/S0022112082001797 · doi:10.1017/S0022112082001797
[10] Boys, Soap Bubbles, Their Colours and the Forces Which Mold Them (1959)
[11] DOI: 10.1126/science.1144616 · doi:10.1126/science.1144616
[12] DOI: 10.1038/432690a · doi:10.1038/432690a
[13] DOI: 10.1017/jfm.2013.404 · Zbl 1294.76054 · doi:10.1017/jfm.2013.404
[14] DOI: 10.1007/978-1-4615-8570-1 · doi:10.1007/978-1-4615-8570-1
[15] DOI: 10.1017/S0956792514000291 · Zbl 1387.76026 · doi:10.1017/S0956792514000291
[16] DOI: 10.1017/S0022112009993168 · Zbl 1189.76432 · doi:10.1017/S0022112009993168
[17] DOI: 10.1115/1.2895486 · doi:10.1115/1.2895486
[18] DOI: 10.1017/S0022112092003227 · Zbl 0775.76054 · doi:10.1017/S0022112092003227
[19] DOI: 10.1063/1.3517737 · Zbl 06421611 · doi:10.1063/1.3517737
[20] DOI: 10.1063/1.4922736 · Zbl 06519027 · doi:10.1063/1.4922736
[21] DOI: 10.1063/1.2204061 · doi:10.1063/1.2204061
[22] DOI: 10.1063/1.1914819 · Zbl 1187.76583 · doi:10.1063/1.1914819
[23] DOI: 10.1039/c0sm00432d · doi:10.1039/c0sm00432d
[24] DOI: 10.1126/science.288.5463.113 · doi:10.1126/science.288.5463.113
[25] DOI: 10.1143/JJAP.32.6059 · doi:10.1143/JJAP.32.6059
[26] DOI: 10.1007/BF01595050 · Zbl 0175.24003 · doi:10.1007/BF01595050
[27] DOI: 10.1126/science.1182383 · doi:10.1126/science.1182383
[28] DOI: 10.1017/jfm.2013.375 · Zbl 1294.76098 · doi:10.1017/jfm.2013.375
[29] Pihler-Puzović, Phys. Rev. Lett. 108 (2012) · doi:10.1103/PhysRevLett.108.074502
[30] Michaut, J. Geophys. Res. 116 (2011) · doi:10.1029/2010JB008108
[31] DOI: 10.1007/s10665-006-9069-7 · Zbl 1148.76005 · doi:10.1007/s10665-006-9069-7
[32] DOI: 10.1137/S003613990242002X · Zbl 1126.76007 · doi:10.1137/S003613990242002X
[33] Matar, Phys. Rev. E 76 (2007)
[34] DOI: 10.1109/84.232594 · doi:10.1109/84.232594
[35] DOI: 10.1109/84.232593 · doi:10.1109/84.232593
[36] DOI: 10.1038/nature10779 · doi:10.1038/nature10779
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.