The first open channel for yield-stress fluids in porous media
| Autor: | Dimitrios Fraggedakis, Emad Chaparian, Outi Tammisola |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Pressure drop
Computer science Mechanical Engineering Computation Open path Mechanics Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Open-channel flow Mechanics of Materials 0103 physical sciences Path (graph theory) Fluid dynamics 010306 general physics Porous medium Network model |
| Zdroj: | Journal of Fluid Mechanics. 911 |
| ISSN: | 1469-7645 0022-1120 |
| Popis: | The prediction of the first fluidized path of yield-stress fluids in complex porous media is a challenging yet important task to understand the fundamentals of fluid flow in several industrial and biological processes. In most cases, the conditions that open this first path are known either through experiments or expensive computations. Here, we present a simple network model to predict the first open channel for a yield-stress fluid in a porous medium. For porous media made of non-overlapping discs, we find that the pressure drop . We also report the statistics on the arclength of the first open path. Finally, we discuss the implication of our results for the design of porous media used in energy storage applications. |
| Databáze: | OpenAIRE |
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