Experimental study of gravitation effects in the flow of a particle-laden thin film on an inclined plane

The flow of viscous, particle-laden wetting thin films on an inclined plane is studied experimentally as the particle concentration is increased to the maximum packing limit. The slurry is a non-neutrally buoyant mixture of silicone oil and either solid glass beads or glass bubbles. At low concentra...

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书目详细资料
Main Authors: Ward, Thomas, Wey, Chi, Glidden, Robert, Hosoi, Anette E.
其他作者: Massachusetts Institute of Technology. Department of Mechanical Engineering
格式: 文件
语言:en_US
出版: American Institute of Physics (AIP) 2013
在线阅读:http://hdl.handle.net/1721.1/78571
https://orcid.org/0000-0003-4940-7496
实物特征
总结:The flow of viscous, particle-laden wetting thin films on an inclined plane is studied experimentally as the particle concentration is increased to the maximum packing limit. The slurry is a non-neutrally buoyant mixture of silicone oil and either solid glass beads or glass bubbles. At low concentrations (ϕ<0.45), the elapsed time versus average front position scales with the exponent predicted by Huppert [Nature (London) 300, 427 (1982) ]. At higher concentrations, the average front position still scales with the exponent predicted by Huppert on some time interval, but there are observable deviations due to internal motion of the particles. At the larger concentration values and at later times, the departure from Huppert is seen to strongly depend on total slurry volume VT, inclination angle α, density difference, and particle size range.