Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR020260 |
Impact of spatially correlated pore-scale heterogeneity on drying porous media | |
Borgman, Oshri1; Fantinel, Paolo2; Luhder, Wieland2; Goehring, Lucas2,3; Holtzman, Ran1 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Israel; Germany; England |
英文摘要 | We study the effect of spatially-correlated heterogeneity on isothermal drying of porous media. We combine a minimal pore-scale model with microfluidic experiments with the same pore geometry. Our simulated drying behavior compares favorably with experiments, considering the large sensitivity of the emergent behavior to the uncertainty associated with even small manufacturing errors. We show that increasing the correlation length in particle sizes promotes preferential drying of clusters of large pores, prolonging liquid connectivity and surface wetness and thus higher drying rates for longer periods. Our findings improve our quantitative understanding of how pore-scale heterogeneity impacts drying, which plays a role in a wide range of processes ranging from fuel cells to curing of paints and cements to global budgets of energy, water and solutes in soils. Plain Language Summary Drying of porous media such as soils, cement, food or fuel cells is an important process in many natural and industrial systems. Drying in soils is of particular environmental importance, as it controls the transfer of water, energy and solutes between the subsurface and the atmosphere. We study the effect of spatial correlation in particle sizes on drying rate and extent, by combining pore-scale modeling with state-of-the-art microfluidic experiments of the same pore geometry. Our simulations compare favorably with experiments, considering the large sensitivity of the emergent behavior to the uncertainty associated with manufacturing errors. We show that increasing the correlation length in particle sizes-the distance in which the probability to encounter particles of similar sizes is high-promotes preferential invasion of clusters of large pores, prolonging liquid connectivity and surface wetness and thus higher drying rates for longer periods. Our findings improve our understanding of how pore-scale heterogeneity, inevitable in most porous materials, affects their drying. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000025 |
WOS关键词 | NETWORK MODELS ; 2-PHASE FLOW ; EVAPORATION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21772 |
专题 | 资源环境科学 |
作者单位 | 1.Hebrew Univ Jerusalem, Dept Soil & Water Sci, Rehovot, Israel; 2.Max Planck Inst Dynam & Selforg, Gottingen, Germany; 3.Nottingham Trent Univ, Sch Sci & Technol, Nottingham, England |
推荐引用方式 GB/T 7714 | Borgman, Oshri,Fantinel, Paolo,Luhder, Wieland,et al. Impact of spatially correlated pore-scale heterogeneity on drying porous media[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Borgman, Oshri,Fantinel, Paolo,Luhder, Wieland,Goehring, Lucas,&Holtzman, Ran.(2017).Impact of spatially correlated pore-scale heterogeneity on drying porous media.WATER RESOURCES RESEARCH,53(7). |
MLA | Borgman, Oshri,et al."Impact of spatially correlated pore-scale heterogeneity on drying porous media".WATER RESOURCES RESEARCH 53.7(2017). |
条目包含的文件 | 条目无相关文件。 |
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